baber/WOPTO huggingface dataset:
Patent TW-202246448-A (TW)
Title: Liquid composition, film and article having film
Inventor: SAKAZUME NAOKI
IPC: C09D131/00
Filed: 2022-02-15
Abstract: To provide a liquid composition which enables formation of a film that is suitable for various industrial products such as an electronic apparatus and an electronic apparatus component, and has high designability. Hereinafter, (A) is a resin component; (B) is uneven formation particles; (B1) is inorganic small particles having a particle diameter (d1) of 0.05 [mu]m or more and 0.4 [mu]m or less; (B2) is inorganic large particles having a particle diameter (d2) of 2 [mu]m or more and 6 [mu]m or less; and (C) is a diluent solvent. A liquid composition according to the present invention forms a film by spray coating, and contains at least (A), (B) and (C). In 100 mass% of the total amount of the total solid content of the composition, 20 mass% or more and 60 mass% or less of the (B) is contained. The (B) contains 90 mass% or more of the (B1) and the (B2), and a mass ratio of the (B2) to (B1):1 is 1.8 or more and 3.3 or less.
Patent TW-202238056-A (TW)
Title: 爐和爐系統
Inventor: LI BIN
IPC: F27B21/08
Filed: 2022-02-22
Abstract: 本案揭示一種爐和爐系統。爐包括爐腔、傳送帶和數個上部紅外裝置。傳送帶安裝在爐腔的內部，用於承載並使共燒陶瓷裝置移動通過爐腔。數個上部紅外裝置佈置在傳送帶上方。其中爐腔被配置為執行以下兩個程序中的任一程序：提供加熱以從共燒陶瓷裝置中移除粘結劑材料；或者提供加熱以將共燒陶瓷裝置形成整體燒結塊狀結構。本案的爐和爐系統能夠用於粘結劑移除循環和共燒燒結循環二者、尤其是在溫升階段，具有改善的加熱均勻性，以提高溫升速度、能夠將紅外光投射到處理中的陶瓷裝置上，以改善溫度均勻性，並且在爐中使用一種類型的加熱裝置來簡化爐的加熱結構。
Patent TW-202245517-A (TW)
Title: Signaling minimum and maximum positioning range indications and zone identifiers for sidelink positioning
Inventor: MANOLAKOS ALEXANDROS
IPC: H04W64/00
Filed: 2022-02-23
Abstract: isclosed are techniques for wireless communication. In an aspect, an assisting user equipment (UE) receives a positioning request from a target UE, the positioning request including a zone identifier (ID) identifying a zone in which the target UE is located, based on the assisting UE being outside a minimum positioning range (Min-PR) and within a maximum positioning range (Max-PR) of the target UE, determines whether to transmit a positioning response to the target UE, and based on the assisting UE being within the Min-PR of the target UE, transmits the positioning response to the target UE.
Patent TW-202335634-A (TW)
Inventor: YANG CHIH-CHIN
IPC: A61B5/097
Filed: 2022-03-08
Abstract: The invention presents a skin breathing sensor, a skin respirator and a care system, which are mainly provided with a detection of skin respiration on the surface of skin. The skin respiration sensor is used to detect the gas exhaled from the human skin as skin breathing. The measurements of the electrical properties as the function of the relative humidity and the breathing rate can be obtained by detecting the variation of capacitance value under the different relative humidity of the exhaled gas from the surface of human skin. Thereby, due to its non-invasive detection and small size, it is convenient for the user in the overall functions of operation and use which can be applied in healthcare. Also, it is convenient for safety testing at anytime and anywhere for user and it can reduce the testing time and the testing cost.
Patent TW-202238103-A (TW)
Title: Absorbance analysis apparatus for dcr gas, absorbance analysis method for dcr gas, and absorbance analysis program recording medium on which program for dcr gas is recorded
Inventor: FURUYA YUICHI
IPC: C23C16/52
Filed: 2022-03-17
Abstract: In order to provide an absorbance analysis apparatus for DCR gas that can measure a concentration of a DCR gas by separating absorbance of the DCR gas alone even in a mixed gas consisting of the DCR gas and CO gas whose absorption spectrum overlaps each other, the absorbance analysis apparatus for DCR gas comprises a DCR filter 31 that is configured to transmit a light in a first wavenumber domain including an absorbance peak of the DCR gas, a CO filter 32 that is configured to transmit a light in a second wavenumber domain that is different from the first wavenumber domain, and a DCR gas volume calculator 4 that is configured to calculate volume of the DCR gas based on a first absorbance measured by the light transmitted through the DCR filter 31 and a second absorbance measured by the light transmitted through the CO filter 32.
Patent TW-202233916-A (TW)
Title: 用於單晶爐的導流筒、單晶爐及導流筒的加工方法
Inventor: Wang shuang-li
IPC: C30B35/00
Filed: 2022-03-18
Abstract: 一種用於單晶爐的導流管、單晶爐及導流管的加工方法，導流管的內輪廓線包括：第一直線段，沿豎直方向延伸；第二直線段，一端與第一直線段的背離坩堝的一端連接，另一端朝向背離晶棒的方向傾斜向上延伸，第二直線段與豎直方向之間的夾角為α，且滿足：α≥45°；線段組，包含多個依次連接且傾斜角度不同的直線段，線段組用於將從晶棒傳遞至線段組上的熱量朝向水冷套傳遞，利用水冷套阻擋熱量反向傳遞至晶棒上。本發明的導流管可以加速晶棒的冷卻，有利於降低晶棒內的熱應力，從而可避免晶棒內部出現孔洞或者差排缺陷，進而可提升晶棒的生產品質。
Patent TW-202249015-A (TW)
Title: Dynamic memory with sustainable storage architecture and clean up circuit
Inventor: Lu chao-chun
IPC: G11C7/06
Filed: 2022-04-14
Abstract: A DRAM chip includes a first sustaining voltage generator, a DRAM cell, a sense amplifie, an equalization circuit, and a clean up circuit. The first sustaining voltage generator produces a first voltage level higher than a voltage level of the signal ONE utilized in the DRAM chip. The DRAM cell includes an access transistor and a storage capacitor.The sense amplifier is coupled to a bit line and a complementary bit line. The equalization circuit couples the bit line and the complementary bit line to a preset reference voltage during an equalization period. The first sustaining voltage generator is electrically coupled to the bit line during a turning-off period of the access transistor, and the clean up circuit is activated to mitigate a difference between a voltage of the bit line and a targed reference voltage during the equalization period.
Patent TW-202249135-A (TW)
Title: Semiconductor device and manufacturing method thereof
Inventor: UEDA TAKEHIRO
IPC: H01L21/027
Filed: 2022-04-15
Abstract: A method for manufacturing a semiconductor device includes forming semiconductor devices from a semiconductor wafer and identifying a position of the semiconductor device in the semiconductor wafer, wherein the forming the semiconductor devices includes forming a first repeating pattern including i semiconductor devices each having a unique pattern, forming a second repeating pattern including j semiconductor devices each having a unique pattern, defining semiconductor devices on the semiconductor wafer such that each of the k semiconductor devices has a unique pattern based on the first and second repeating patterns, and grinding a backside of the semiconductor wafer, wherein each unique pattern of the k semiconductor devices is composed of a combination of the unique patterns of the first and second repeating patterns, wherein the position of the semiconductor device is identified based on the unique patterns of the first and second repeating patterns and an angle of a grinding mark.
Patent TW-202302888-A (TW)
Title: Vapour deposition product and method therefor
Inventor: HUSSEY THOMAS
IPC: C23C14/08
Filed: 2022-05-03
Abstract: A substrate with a film. The substrate with a film comprising a porous substrate. The porous substrate having one or more pores extending through the substrate. A film can be applied to the porous substrate. The film being a vapour deposited film formed from a metal vapour adhering to the surface of the substrate, and wherein the film comprises a metal and a metal oxide.
Patent TW-202302384-A (TW)
Inventor: SAGARE DATTA RAJARAM
IPC: B60L53/10
Filed: 2022-05-17
Abstract: 本發明涉及一種用於一電動車輛之無線電池充電系統。該充電系統100包括一接收器單元108，並可通信耦接至配置在該車輛102外的一充電集線器112之一傳送器單元110。該系統100包括一控制單元114，其耦接於該接收器單元108、一電池組104、及一馬達106。該系統包括一第一開關116，其在介於該接收器單元108和該控制單元114之間連接，以從該接收器單元108選擇地供應電力至該電池組104而用於充電。該系統包括一第二開關118，其在介於該控制單元114和該馬達106之間連接。在一電池充電模式中，控制單元114經組態以接通第一開關116和斷開該第二開關118，藉此充電該電池組104。該充電系統消除在電動車輛中的車載充電器。
Patent TW-202304443-A (TW)
Inventor: MARCHAN SANCHO SANDRA
IPC: A61P31/00
Filed: 2022-05-19
Abstract: 本發明提供一種組合，其包含塞普沙辛或其醫藥學上可接受之鹽及丙酮氟洛皮質醇，用於預防及／或治療眼部疾病，其中該預防及／或治療包含局部投予該組合。本發明亦提供一種眼用局部醫藥組成物，其包含該組合以及至少一種眼用可接受之賦形劑、稀釋劑、或載劑，用於預防及／或治療眼部疾病，其中該預防及／或治療包含局部投予該組成物。
Patent TW-202309420-A (TW)
Title: Powder lubrication method of strain wave gearing
Inventor: KOBAYASHI MASARU
IPC: F16H1/32
Filed: 2022-05-24
Abstract: A powder supply mechanism (10) provided with a pressure-molded article (12) in which a solid lubricant powder is solidified in advance is incorporated in an inner space (9) of an external tooth gear (3) of a wave motion gear device (1). During operation of the wave motion gear device (1), the powder supply mechanism (10) abrades the pressure-molded article (12) through a friction plate (13), and thereby can supply trace amounts at a time of a solid lubricant abrasion powder (11) from the pressure-molded article (12) over a long period of time. A decrease in efficiency attributed to loss torque generated by the infiltration of large amounts of solid lubricant powder into a gap of a contact part (C) or the like of a wave motion generator (4) rotating at a high speed can be suppressed. Thus, the life span of the wave motion gear device that is powder lubricated can be increased while maintaining the high efficiency state of the wave motion gear device.
Patent TW-202305897-A (TW)
Inventor: CHIU SHIH-HANG
IPC: H01L23/34
Filed: 2022-06-16
Abstract: 此處揭露多閘極裝置與其製作方法。例示性的方法包括形成n型功函數層於閘極結構的閘極溝槽中，其中n型功函數層形成於p型閘極區中的多個第一通道層周圍以及n型閘極區中的多個第二通道層周圍；形成第一金屬填充層於p型閘極區中的n型功函數層之上的第一閘極溝槽中以及n型閘極區中的n型功函數層之上的第二閘極溝槽中；自p型閘極區移除第一金屬填充層；自p型閘極區移除n型功函數層；形成p型功函數層於p型閘極區的第一閘極溝槽中；以及形成第二金屬填充層於p型閘極區的第一閘極溝槽中。
Patent TW-202317121-A (TW)
Title: Erk1/2 and egfr inhibitors combination therapy
Inventor: SHOEMAKER ROBERT FIELD
IPC: A61K31/506
Filed: 2022-06-23
Abstract: The present disclosure relates generally to the use of an ERK1/2 inhibitor in combination with a EGFR inhibitor for treating cancer, specifically solid tumors. The present disclosure also relates to the use of an ERK1/2 inhibitor in combination with a EGFR inhibitor and a BRAF inhibitor for treating cancer, specifically solid tumors.
Patent TW-202308860-A (TW)
Title: Printed product, preparation method therefor, and use thereof
Inventor: Liu er-wei
IPC: B41M5/40
Filed: 2022-08-29
Abstract: The present invention relates to a printed product, which comprises: a. a substrate; b. a primer layer located on the substrate, wherein the primer layer comprises an organic dielectric material; c. a metal conductive layer located on the primer layer; wherein the printed product further comprises a hybrid layer between the primer layer and the metal conductive layer, wherein the hybrid layer comprises materials from the primer layer and the metal conductive layer. In addition, the present invention further relates to a method for preparing the printed product and an electronic device comprising the printed product. The metal conductive layer in the printed product of the present invention has excellent uniformity in thickness; good adhesion between the primer layer and the conductive layer; and the printed product of the present invention has excellent EMI shielding effects, such that the printed product can be used in high frequency applications such as 5G applications.
Patent TW-202313386-A (TW)
Inventor: ZHONG ZHI-REN
IPC: B62B7/06
Filed: 2022-09-14
Abstract: 一種嬰兒載具，包含車手、第一固定件、第二固定件、後腳、前腳、釋鎖件、第一鎖定件、轉動件以及牽引件。第一鎖定件卡合第一固定件與第二固定件，以將車手、後腳與前腳鎖定於第一展開位置。當釋鎖件拉動牽引件時，牽引件帶動轉動件轉動，第一固定件的第一驅動斜面將轉動件朝第一鎖定件頂推，且轉動件將第一鎖定件朝第二固定件頂推，以使第一鎖定件脫離與第一固定件的卡合。
Patent TW-202330972-A (TW)
Inventor: YEON CHANG-BONG
IPC: C23C16/02
Filed: 2022-11-16
Abstract: The present invention relates to a film quality improver, a thin film forming method using same, a semiconductor substrate manufactured therefrom, and a semiconductor device, wherein a compound with a predetermined structure is provided as a film quality improver, and a shielding region for a molybdenum-based thin film is formed on a substrate to reduce the rate of deposition of the molybdenum-based thin film and control the growth rate of the thin film, so that even when a thin film is formed using a compound, which is a solid at room temperature, on a substrate with a complicated structure, electrical properties of the thin film are improved through significant improvements in step coverage and thin film thickness uniformity, a reduction in corrosion or deterioration, and an improvement in crystallinity of the thin film.
Patent TW-202331199-A (TW)
Title: Apparatus for optical inspection
Inventor: KIM SANG-JUN
IPC: G01B9/00
Filed: 2022-11-25
Abstract: The present invention relates to an optical inspection apparatus and, more specifically, to an optical inspection apparatus for finding a measurement region of a sample to be measured. The present invention provides the optical inspection apparatus comprising: an image acquisition unit including a first illumination optical system, which emits first illumination light at a measurement position on the surface of a sample, and an imaging optical system, which concentrates first reflected light from the surface of the sample so as to form an image on a first detector; and a distance detection unit including a second illumination optical system, which emits second illumination light at the measurement position on the surface of the sample, a beam shaping optical system, which changes the shape of second reflected light from the surface of the sample, and a second detector on which the second reflected light having passed through the beam shaping optical system is incident in a state in which no image is formed, wherein the beam shaping optical system allows the shape of the second reflected light having passed through the beam shaping optical system to change according to the distance between the objective lens of the first illumination optical system and the surface of the sample.
Patent TW-202336798-A (TW)
Inventor: CLAY NEVIN
IPC: H01J37/317
Filed: 2023-01-12
Abstract: 一種用於對由將離子植入到設置在工件上的光阻中引起的除氣量進行控制的系統及方法。除了其他影響之外，除氣量是基於被植入的物質、光阻的類型、植入的能量及已經植入的劑量。通過對有效束電流進行控制，可使除氣量維持低於預定閾值。通過開發及利用有效束電流、完成劑量及除氣速率之間的關係，可更精確地對有效束電流進行控制，以在維持低於預定除氣閾值的同時以最高效的方式對工件進行植入。
Patent TW-202320785-A (TW)
Inventor: ACKERMANN DOUGLAS MICHAEL
IPC: A61K31/506
Filed: 2017-04-06
Abstract: 本文中描述用於治療眼部病狀之方法及醫藥調配物。
Patent TW-202336574-A (TW)
Inventor: HSIEH YU-AN
IPC: G06F3/041
Filed: 2022-03-14
Abstract: An electronic device includes a display module, a protection cover, a first light shielding layer, a light guide plate, a light source, a touch sensitive film, a first optical adhesive, a light shielding element, and a second light shielding layer. The protection cover is above the display module. The first light shielding layer connects a bottom surface of the protection cover, and is configured to define a non-visible area of the electronic device. The light guide plate is located on the display module and overlaps the non-visible area. The light source is located on the display module and adjacent to the light guide plate. The touch sensitive film is above the light guide plate. The first optical adhesive is located between the touch sensitive film and the protection cover. The light shielding element is located on the display module and overlaps the non-visible area. The second light shielding layer is located on the touch sensitive film and overlaps the light shielding element. The second light shielding layer is configured to absorb light transmitted in the touch sensitive film and the first optical adhesive in the non-visible area.
Patent UA-42408-A (UA)
Title: Drive of electric spindle
Inventor: SOLOMKO VOLODYMYR ANDRIIOVYCH
Filed: 2001-02-16
Abstract: A drive of electric spindle has an upper nozzle, a body of the drive inside which electric motor and spindle shaft are installed, the lower part of this one is mounted in support unit by means of the lower and the upper supports, and the support unit itself is installed through dampeners on support. The lower and the upper supports are arranged as ball bearings of closed type with two-side metal tightening, with increased radial gap 13-28 mkm, with filling thermo-stable lubricant.
Patent UA-41771-A (UA)
Title: Трубчастий реактор для одержання нітрату амонію
Inventor: SERHIIENKO IVAN DANYLOVYCH
Filed: 2001-03-26
Abstract: 1. Об'єкт винаходу: Трубчастий реактор для одержання нітрату амонію. 2. Галузь застосування: Хімічна промисловість. Хімічний реактор для проведення реакцій між газовою та рідкою фазами реагентів. 3. Суть винаходу: Трубчастий реактор багатозонного контактування, в якому пристрій для вводу аміаку та азотної кислоти рівномірно розподілено по всій довжині змішувальної камери. Конструкція включає циліндричну трубу (корпус), розподільник для тангенціального вводу аміаку, співвісно розміщений в корпусі, та тангенціальне вмонтовані в корпус реактору форсунки для вводу азотної кислоти. На внутрішній поверхні корпусу реактору розміщені пластини, що сприяють покращенню взаємодії реагентів. 4. Альтернативне рішення. Змішувальна камера трубчастого реактору складена з кільцевих елементів. Кільцеві елементи мають канали для тангенціального вводу азотної кислоти в зону реакції. Реакційні зони створені простором між встановленим в центрі змішувальної камери стержнем та внутрішньою циліндричною поверхнею кільцевих елементів. 5. Технічний результат: Підвищення повноти протікання реакції, якості продукту, безпеки процесу, а також можливість гнучкого керування процесом.
Patent UA-46404-A (UA)
Inventor: KUZNIETSOV DMYTRO ANATOLIIOVYCH
Filed: 2001-07-10
Abstract: The method for assessing the severity of the state of the patients with the acute cerebral hemispheric hemorrhagic insult consists in the estimation of the derangements of the consciousness level and gazing function, the presence of the pontobulbar dysfunctions, the disturbances of the movements as well as sensation and speech disturbances. In addition the rate of the insult evolution is estimated with the assessment of the predominance of the focal versus general syndromes, the expression of the respiratory disturbances and the disturbances in the thermal regulation. The disturbances of the oculocephalic reflexes, the cranial nerve system disturbances, the presence of the syndromes of the muscular dystonia and meningeal syndrome, the signs of the epileptic syndrome and the pathologic pyramidal symptoms are also registered. On the basis of the computing tomography data the localization and the extent of the focal lesion, the heaviness of the brain edema as well as the presence of the transtentorial and lateral displacement of the cerebral structures are also assessed. On the basis of the computer electroencephalography the amplitude and the frequency characteristics of the alpha rhythm and the slow-wave activity are additionally assessed.
Patent UA-51924-A (UA)
Title: Pit furnace for firing carbonate material
Inventor: ZOZULIA OLEKSANDR FEDOROVYCH
Filed: 2001-09-25
Abstract: Pit furnace for carbonate raw material firing has a pit, fire-proofed links, loading unit, discharge unit, unit for fuel supply, for the furnace gas taking out, for supply of drying gas to the upper part of the furnace. Average ratio of the width of the fire-proofed link to the average dimension of the diameter of the piece of raw material is 812, and distance for drying furnace gas supply corresponds to 1.5 – 3 dimensions of the pit width.
Patent UA-54728-A (UA)
Title: Method for protecting myocardium in correction of congenital heart diseases performed under conditions of artificial blood circulation
Inventor: MAKSYMЕNKO VITALII BORYSOVYCH
Filed: 2002-02-21
Abstract: The method for protecting the myocardium in correction of the congenital heart diseases performed under conditions of the artificial blood circulation consists in employing the cardioplegic solution based on potassium chloride with the addition of perfluorane. Then the mixture obtained is saturated with oxygen.
Patent UA-52446-A (UA)
Title: Device for determining physical and chemical properties of materials that take the form of a vessel (variants)
Inventor: MELNYKOV OLEKSANDR VALERIIOVYCH
Filed: 2002-05-20
Abstract: The proposed device for determining physical and chemical properties of materials that take the form of a vessel contains a casing with a separable cover, measuring electrodes, and a measuring unit. The tested material sample is inserted into the casing. The vessel has cylindrical form and contains at least three identical chambers. As one of the measuring electrodes, the tested material is used. The other electrodes are arranged at the sidewalls of the chambers.
Patent UA-55808-A (UA)
Title: Pressure transducer
Inventor: SHEVCHUK ROMAN STEPANOVYCH
Filed: 2002-06-27
Abstract: The proposed pressure transducer contains a cantilever beam with a resistance strain, gage, which cantilever beam is installed at a support frame, and a set of elastic spacers with different stiffness coefficients. One of these spacers shall be installed between the cantilever beam and the support frame.
Patent UA-55898-A (UA)
Title: Vacuum pump
Filed: 2002-07-17
Abstract: Vacuum pump has outer housing with a branch pipe. Housing of the pump is made elastic, in its cavity there is placed a balloon with suction elastic branch pipe. Outer surface of the balloon is connected by links to the inner surface of the outer housing.
Patent AP-1639-A (AP)
Title: Pharmaceutical compositions of antiviral compounds and processes for preparation.
Inventor: VERREK GEERT
IPC: A61K9/20
Filed: 2000-08-31
Granted: 2006-07-24
Abstract: The present invention is concerned with pharmaceutical compositions of antiviral compounds which can be administered to a mammal, in particular a human, suffering from viral infection. These compositions comprise particles obtainable by melt-extruding a mixture comprising one or more antiviral compounds and one or more appropriate water-solube polymers and subsequently milling said melt-extruded mixture.
Patent DO-P2003000765-A (DO)
Title: Ureas substituidas y carbamatos utiles para el tratamiento de la enfermedad de alzheimer (substituted ureas and carbamates useful in the treatment of alzheimer`s disease
Inventor: PULLEY SHON R
IPC: C07D407/06
Filed: 2003-11-26
Abstract: la invencion brinda compuestos de fómula 1 útiles para el tratamiento de alzhimer y otras enfermedades similares. los compuestos incluyen inhividores de la enzima beta-secretasa que son útiles para el tratamiento de la enfermedad de alzheimer y otras enfermedades caracterizadas por depósito de péptidos a beta en un mamifero. los compuestos de la invención son útiles en compociciones farmacéuticas y métodos de tratamiento para reducir la formación de péptido
Patent DO-P2023000201-A (DO)
Title: Agonistas del receptor de glucocorticoides
Inventor: JOSHUA RYAN CLAYTON
IPC: A61P17/00
Filed: 2023-09-20
Abstract: La presente invención proporciona un compuesto de la Fórmula I: en donde R es H o ; R1 es H, halógeno, alquilo C1-C3, cicloalquilo C3-C6, alcoxi C1-C3, alquenilo C2- C3, OCF3, ;  R2 es H, halógeno, alquilo C1-C3, alcoxi C1-C3 o alquenilo C2-C4; R3 es NH2, o CH2NH2; y X es O, OCH2, OCH2CH2, OCH(CH3), CH2O, SCH2, CH2S, CH2, NHCH2, CH2NH, N(CH3)CH2, CH2CH2, C=C, o un enlace, en donde X está conectado al anillo de fenilo A en la posición orto o meta, o una sal farmacéuticamente aceptable de este, en donde el compuesto de la Fórmula I, o una sal farmacéuticamente aceptable de este, es útil para la fabricación de medicamentos para tratar enfermedades autoinmunes e inflamatorias, tales como dermatitis atópica y artritis reumatoide.
Patent EE-200000510-A (EE)
Inventor: SCHWARZ HERBERT
IPC: A61K38/17
Filed: 1999-03-05
Abstract: The invention relates to the utilization of monocytes growth factor CD137 or of a functional analogue thereof in order to produce a medicament for promoting the proliferation of peripheral monocytes of a mammal. The invention especially relates to the utilization of the growth factor for treating pathological conditions.
Patent GB-189704712-A (GB)
Title: Microphone Worked by Granular Coal.
Inventor: ZWARG JULIUS OTTO
Filed: 1897-02-22
Granted: 1898-01-22
Abstract: 4712. Zwarg, J. O. Feb. 22. Telephones.-Microphones in which granular carbon or coal is used are formed of a metal box a having an opening in the back b for filling with granular m aterial g. The face a' has a number of oblique perforations a<2> through which the granular carbon passes to the diaphragm p. The diaphragm is held in position by a ring e and insulated screws f, a mouthpiece c being screwed into the ring e.