baber/WOPTO huggingface dataset:
Patent JP-H06194698-A (JP)
Title: Nonlinear optical semiconductor device
Inventor: SASA MASAHIKO
IPC: G02F1/015
Filed: 1992-12-24
Abstract: PURPOSE:To provide the nonlinear optical semiconductor device which can substantially prevent the generation of accumulation of holes in an active layer by rapidly tunneling holes from a barrier layer and can drastically shorten the time for restoration of light absorption without generating the degradation and saturation of absorption of the light in the active layer. CONSTITUTION:Semiconductor barrier layers 2, 3 having the lattice constant smaller than the lattice constant of a semiconductor quantum well active layer 1 and the band gap larger than the band gap of this semiconductor quantum well active layer 1 are formed by holding the semiconductor quantum well active layer 1 therebetween. semiconductor layers having the band gap capable of tunneling the electrons and holes exited in the semiconductor quantum well active layer 1 by the incident light and having the film thickness larger than the film thickness of the semiconductor quantum well active layer 1 are formed on both sides of the semiconductor barrier layers 2, 3.
Patent JP-H11173916-A (JP)
Title: Color/opacity meter
Inventor: FUJITA TETSUYA
IPC: G01J3/46
Filed: 1997-12-15
Abstract: PROBLEM TO BE SOLVED: To provide a color/opacity meter improve in accuracy. SOLUTION: This color/opacity meter is provided with a rotary shaft 13 provided on the other surface side of a base plate 11 parallelly with this base plate 11, a polygonal drum-shaped lining material holder case 15 having a peripheral surface part 16 composed of the continuation of planes and a side face part 17 composed of polygonal planes while being supported by this rotary shaft 13, arranging one plane of the peripheral surface part 16 on a light transmission window 12 and making such a plane and one face of the base plate 11 into the same plane, plural lining material holders 21 provided on this lining material holder case 15 for each plane of the peripheral surface part 16, light transmission plates 22 respectively provided on these lining material holders 21 while being made into the same plane as the plane of the peripheral surface part 16,  and lining materials 23 respectively provided and arranged on the lining material holders 21 while overlapping a prescribed number of sheets parallelly to these light transmission plates 22.
Patent JP-H11174999-A (JP)
Title: Display device by semiconductor laser
Inventor: MIZUI JUNICHI
IPC: G09F9/33
Filed: 1997-12-15
Abstract: PROBLEM TO BE SOLVED: To provide a display device by a semiconductor laser capable of displaying large-sized full-color display by using a semiconductor laser element. SOLUTION: Light emitting sources 2l1 -2nm are formed by making a set of semiconductor laser elements 2R, 2G, 2B, emitting light beams of three primary colors, a unit and the light emitting sources 2l1 -2nm are arranged in a matrix shape. End face light emitting type elements are used for the semiconductor laser elements 2R, 2G, 2B and a large light emitting area and a prescribed wide angle of field are ensured by transmitting the laser beams emitted from the respective semiconductor laser element 2R, 2G, 2B through a diffuser plate 6 having the lens function.
Patent JP-2001168033-A (JP)
Title: Semiconductor manufacturing device
Inventor: TSUNEMI DAIKI
IPC: C23C16/44
Filed: 1999-12-03
Abstract: PROBLEM TO BE SOLVED: To provide a semiconductor manufacturing device which can prevent a resulted product of reaction deposited in an auxiliary chamber in which plasma of a cleaning gas is generated from flowing in a main chamber. SOLUTION: A by-pass passage 18 is provided between an introducing passage 3 connecting the main chamber 1 to the auxiliary chamber 2 and a vacuum evacuating passage 4 and, at the same time, a three-pot valve 17 is installed to the junction of the introducing passage 3 with the by-pass passage 18. At the time of cleaning the main chamber 1, the chambers 1 and 2 are made to communicate with each other and, at the time of vacuum evacuating the auxiliary chamber 2, the chamber 2 is connected to the vacuum evacuating passage 4 through the by-pass passage 18 by switching the valve 17. Consequently, particles which are generated in the auxiliary chamber 2 can be prevented from flowing in the main chamber 1.
Patent JP-H11178002-A (JP)
Title: Color television receiver, and black-and-white/color identifying circuit
Inventor: KITAMURA YASUHIKO
IPC: H04N9/64
Filed: 1997-12-15
Abstract: PROBLEM TO BE SOLVED: To provide a color television receiver that is properly able to identify whether a received television signal is a black-and-white signal or a color signal. SOLUTION: Identification sensitivity of a black-and-white/color identification circuit 20 is set higher, when an amplitude of a chromatic signal CS is high and is set lower, when the amplitude of the chromatic signal CS is low. An amplitude compactor circuit 30 selects the identification sensitivity. Thus, whether a received television signal is a black-and-white signal or a color signal is identified properly, without errors.
Patent JP-H11177082-A (JP)
Title: Mis field-effect transistor and manufacture thereof
Inventor: OKUDA YASUSHI
IPC: H01L29/78
Filed: 1997-12-15
Abstract: PROBLEM TO BE SOLVED: To prevent a parasitic bipolar operation caused by the charge in a channel region for better noise-proofing. SOLUTION: Silicon carbide layers 3 and 7 of a wide energy band gap width and high second conductivity impurity concentration are formed under channel regions 4 and 8, for both suppressed punch through and high driving force. Again, an excessive second conductivity carrier near a drain joint moves to silicon layers 2 and 6 through a wide gap layer for avoiding a parasitic bipolar operation. Further, even when a first conductivity carrier is induced in a semiconductor substrate 1 by noise, no noise is transferred to a channel region as it is blocked by an energy barrier.
Patent JP-H06169047-A (JP)
Title: Semiconductor device
Inventor: KADOWAKI YOSHINOBU
IPC: H01L23/28
Filed: 1992-11-30
Abstract: PURPOSE:To prevent the electromagnetic radiation from a microwave semiconductor device using a resin sealed package and to enhance operation stability. CONSTITUTION:The lead molding direction of a resin sealed package 6 is set so that the surface of a semiconductor element 1 in the package 6 faces a circuit board at the time of the mounting on the circuit board. A die pad 3 of a lead frame, which is connected to a grounding electrode lead 4, is made to cover the semiconductor element 1. Therefore, the electromagnetic shielding effect when the resin sealed package 6 is used can be enhanced.
Patent JP-H05179603-A (JP)
Title: Method for manufacturing pavement sheet
Inventor: MORI KENJI
IPC: E01C5/22
Filed: 1991-12-26
Abstract: PURPOSE:To easily manufacture a pavement sheet having excellent durability by distributing wear resistive powder aggregate over the surface of a thermoplastic resin sheet, and by pressing the sheet keeping it in a soft state through an elastic rubber body having required hardness, and by hardening it with the aggregate buried so that a part of the aggregate projects partially. CONSTITUTION:Wear resistive powder aggregate 1 made of crushed stones, etc., is distributed over the surface of a backing sheet 2 made of thermoplastic resin having flexibility. Next, while keeping the backing sheet 2 in a soft state, the backing sheet 2 is pressed by means of an elastic rubber body, which has hardness of 25 or more and 95 or less, and has permanent compression strain of 60% or less, so that a part of the aggregate 1 is exposed on the surface. The sheet 2 is cooled and hardened with the aggregate buried. So, flaking and falling of the aggregate 1 from the sheet 2 are prevented. Thus, it is possible to easily manufacture a pavement sheet having excellent slip resistance and durability.
Patent JP-H07181309-A (JP)
Title: Reflecting mirror in headlight for vehicle
Inventor: ISHIDA HIROYUKI
IPC: F21Y101/00
Filed: 1993-12-22
Abstract: PURPOSE:To form a luminous intensity distribution pattern for a low-beam only by means of a luminous intensity distribution controlling function of a reflecting mirror so as to comply with the inclination of a front lens. CONSTITUTION:A reflecting face consists of three kinds of basic faces. The first basic face is formed as an aggregated body of parabolas by allocating the parabolas extending in the vertical direction to a horizontal reference curve restricted by range specification of a horizontal diffusion angle, while the second basic face is formed as an aggregated body of parabolas by allocating the parabolas extending in the vertical direction to a corrugated horizontal reference curve. The third basic face is formed as an aggregated body of spline curves based on the parabolas extending in the vertical direction and the parabolas provided by vertically moving the parabolas extending in the vertical direction. The second basic face is used in the central part (20A) of a reflecting mirror 19, the third basic face is used in the circumference parts (20E, 20F), and the first basic face is used in the parts (20B, 20C, 20D) between the second basic face and the third basic face.
Patent JP-2000171299-A (JP)
Title: Light source for optical analysis
Inventor: TOKU GIYOUMEI
IPC: G01N21/01
Filed: 1998-12-04
Abstract: PROBLEM TO BE SOLVED: To provide good wavelength purity with a compact light source having high utility. SOLUTION: LEDs I(light emitting diodes) 24a to 24e are disposed as light sources at a plurality of dispersive wavelength positions on a straight line 22 becoming wavelength dispersing positions when a spectroscope is constituted of a diffraction grating 20, switched at powers from a power source 26 by a changeover switch 28, and the powers are sequentially supplied to the LEDs 24a to 24e. Emitting slits 30 are disposed at positions of an inlet slit in the case of constituting the spectroscope by using the grating 20, and lights from the LEDs 24a to 24d sequentially switched and generated are dispersed at the grating 20, condensed at the position of the slit 30 and output.
Patent JP-H06193263-A (JP)
Title: Concrete product
Inventor: KAWAMOTO NORIO
IPC: C04B28/02
Filed: 1992-12-25
Abstract: PURPOSE:To obtain a concrete product which can effectively utilize for the hardened article and has high strength and light weight and is being beautiful in view of decorative performance by setting the hardness of the epoxy resin hard particle to specific value or greater and setting the content of the inorganic filler to a specific weight of the whole of the epoxy resin composition and compounding the hard particles in the concrete. CONSTITUTION:Epoxy resin hard particles are contained in the cement composition containing cement and water so that the Shore hardness becomes 50 or greater. Further, the inorganic fillers are compounded in order to maintain the particle hardness and strength. The content is set to 30-92wt.% of the whole of the epoxy resin composition. Accordingly, the concrete product which has the excellent durability and surface polishing workability and being beautiful decorative effect can be obtained.
Patent JP-H10186313-A (JP)
Title: Color liquid crystal display device
Inventor: FUJIYOSHI TATSUMI
IPC: G09G3/36
Filed: 1996-12-25
Abstract: PROBLEM TO BE SOLVED: To obtain a color liquid crystal display device, in which a line crawling is hardly viewed even when a driving by an interlace system is performed, by specifying the interval between adjacent lines of plural lines to be obtained by connecting pixels, which are mutually nearest, with each other in among respective pixels of the same basic color to be driven with the riving voltage of the same polarity. SOLUTION: The interval between adjacent lines of plural lines to be obtained by connecting pixels, which are mutually nearest, with each other among respective pixels of the same basic color to be driven with the driving voltage of the same polarity is made not larger than 260μm by two-dimensional arranging pixels corresponding to plural kinds of basic colors repeatingly. That is, an oblique straigth line by a chain line is a straight line connecting pixels, which are mutually nearest, with each other in among pixel of display color G to be driven with a negative driving voltage. Moreover, two lines of oblique straight lines by full lines are straight lines connecting pixels, which are mutually nearest, with each other in among pixels of display color G to be driven with the negative driving voltage. Then, when the spatial cycle of fluctuation of transmissivity to be given by the interval between the two lines of oblique straight lines is not larger than 260μm, the line crawling is not viewed.
Patent JP-2000168187-A (JP)
Title: Image processing system utilizing street terminal
Inventor: OYU KEIKO
IPC: B41J21/00
Filed: 1998-12-07
Abstract: PROBLEM TO BE SOLVED: To obtain a sheet of image easily from a plurality of images by inputting a command for synthesizing a plurality of images to a street terminal comprising an image display section, an image I/O section, an image processing section, a print section, an image memory section and a controller and outputting an image therefrom. SOLUTION: A terminal 1 comprises a controller 10, an image display section 11, an image I/O section 12, an image processing section 13, an image memory section 14 and a print section 15, and a cash I/O section 17 is provided, as required. The print section 15 for printing out a completed synthesized image onto a recording paper can employ an ink jet printer, or the like, and a printer dedicated for digital camera include a sublimation transfer printer. The image memory section 14 serves as an image file for storing various images and stores a synthesized image for a specified period as designated. When the image file is utilized, user of the terminal presents a relevant image selectively at the display section.
Patent JP-2001161673-A (JP)
Title: Collimator for radiation detector
Inventor: TONAMI HIROMICHI
IPC: A61B6/03
Filed: 1999-12-06
Abstract: PROBLEM TO BE SOLVED: To provide a collimator for a radiation detector capable of preventing an X-ray shut-off plate from being peeled off support boards even when the collimator is rotated at high speed. SOLUTION: Support boards c6 and d7, shaped in a circular arc with an X-ray tube at the center in the channel direction, have a tapered surface 10 on the side in the slicing direction respectively. The support board d7 is supported by the support board c6 with support bars (not shown) projecting from both ends of the support board c6 in the channel direction. An X-ray shut-off plate a5 with the tapered surfaces 10 is inserted between the support boards c6 and d7 in the direction of x-ray beams coming in from the X-ray tube and fixed with an adhesive material 4.
Patent JP-H10168802-A (JP)
Title: Temporary rail for works
Inventor: SHIMODA TOSHIO
IPC: E01B5/08
Filed: 1996-12-11
Abstract: PROBLEM TO BE SOLVED: To reduce the weight of a rail to facilitate the handling, and make it difficult to wear or damage a head part receiving a load by forming the bottom part, body part and head part of an I-shaped sectional rail body by use of a light metal, and forming the rail head top surface and side part by use of a wear resisting material. SOLUTION: A bottom part 1a, body part 1b, and head part 1c of a rail body 1 are formed of aluminum alloy to reduce the weight. On the upper surface of the head top surface which is formed into a shape in which the upper surface is cut from the natural sectional form on the head top side of the head part 1c, a head top surface plate 2 formed of a wear resisting material is formed in a substantially T-shaped section so as to cover the whole surface. A downward protruding part T forming a connecting leg is fitted to a recessed groove part K formed on the head top surface plate 2 in the upper surface center of the head part 1c, and a bolt 3 is screwed to a bolt hole formed on the head part 1c from a mounting hole 3a formed on the upper surface of the head top surface plate 2 toward the protruding part T to fix the head top surface plate 2 to the rail body 1.  The head top surface plate 2 is formed of the wear resisting material so as to be sufficiently resistant to long-term use, and can be replaced by a new head top surface plate 2 when it is worn.
Patent JP-H07182370-A (JP)
Title: Text retrieval device
Inventor: SAKUGI KOICHI
IPC: G06F17/21
Filed: 1993-12-22
Abstract: PURPOSE:To provide a text retrieval device which can speedily retrieve a desired text by easy specification. CONSTITUTION:In a text storage means 1, plural texts are stored and a key word index generating means 2 extracts key words from the respective texts stored in the test storage means 1, and generates and stores key word indexes indicating the texts where the key words are present in a key word index storage means 6. And, a key word extracting means 4 once inputting a document (text retrieval sentence) specifying a retrieval object from a text retrieval sentence input means 3 extracts a key word from the document. Then, a comparing means 5 compares the extracted key words with the key words in the key word indexes to specify the text to be retrieved and a text output means 7 reads the specified text out of the storage means and outputs it.
Patent JP-H11180883-A (JP)
Title: Extract from cassia mimosoides and its production
Inventor: SATO HIROSHI
IPC: A23G1/30
Filed: 1997-12-16
Abstract: PROBLEM TO BE SOLVED: To obtain an extract from Cassia mimosoides remarkably decreased in the miscellaneous taste, e.g. astringent taste, bitter taste or the like, which comes into problem when used as foods and drinks and the unpleasant smell peculiar to Cassia mimosoides without reducing lipase inhibitory activity and to provide a method for producing it. SOLUTION: This extract is obtained by roasting an extract from Cassia mimosoides extracted by the conventional method extracting with ethanol or an ethanolic aqueous solution. Further, in order to additionally accelerate the improvement in quality, the extract is treated by steam-distillation and water- washing followed by roasting at preferably 100-130 deg.C during 1-5 hrs.
Patent JP-H11177150-A (JP)
Title: Photo-semiconductor device
Inventor: KITAJIMA TOMOKAZU
IPC: H01L31/02
Filed: 1997-12-16
Abstract: PROBLEM TO BE SOLVED: To reduce the size and the thickness of a photo-semiconductor device by plating the surface of a planar transparent resin and mounting a photo- semiconductor device on the plated part. SOLUTION: A photo-semiconductor device is provided with a substantially square planar transparent thermoplastic resin 21 and a square hole 22 is made in the center on the surface thereof. The outer side faces 21a, 21b of the transparent resin 21, the inner side wall 21c and the inner bottom face 21d of the hole 22 are then subjected to plating in stripe at a plurality of parts 23 by about 0.03 mm. A light receiving semiconductor chip 24 having a light receiving face 24a, a photodiode or a photo IC, is mounted at the plated part 23 on the inner bottom face 21d of the hole 22. Subsequently, the electrode pad 24aa of the light receiving semiconductor chip 24 and the plated part 23 are connected electrically by bump bonding. Furthermore, the chip 24 is bonded by sealing the hoe 22 thereof with epoxy resin 25.  According to the structure, the photo- semiconductor device can be reduced in size and thickness.
Patent JP-H10171270-A (JP)
Title: Cleaner for transfer carrying-belt
Inventor: TAKANO SATOSHI
IPC: G03G15/16
Filed: 1996-12-09
Abstract: PROBLEM TO BE SOLVED: To provide a cleaner which can refresh at all times a part which contacts a transfer carrying-belt and perform paper-powder removal which is stable for a long period of time. SOLUTION: A sponge roller 20 is rotatably supported opposite to a drive roller 1 used for the transfer carrying belt 4, and it is made to abut on the surface of the transfer carrying-belt 4. During the normal rotation of the transfer carrying-belt 4, while being kept stationary by means of a stopper 22 and a stop pawl 21, the sponge roller 20 slides against the transfer carrying-belt 4, thereby removing paper powder and so on from the surface of it. When the transfer carrying-belt 4 is reversely rotated to remove paper powder and so on from the front end of a cleaning blade 2 after one job such as copying, the sponge roller 20 rotates following the transfer carrying-belt 4, so that the abutting faces of the sponge roller 20 and transfer carrying-belt 4 change.  By the repetition, the sponge roller 20 and transfer carrying-belt 4 uniformly slide against each other, and the removal effect is maintained for a long period of time.
Patent JP-H05181191-A (JP)
Title: Camera provided with magnetic head
Inventor: KATANO YUJI
IPC: G11B33/02
Filed: 1991-12-27
Abstract: PURPOSE:To provide a camera having a magnetic head capable of inhibiting information recorded on a magnetic recording region from being transferred by the holding/pressing of a film roller. CONSTITUTION:In the camera equipped with the magnetic head 4 recording the information on the magnetic recording region 3b provided along the longitudinal direction of a film 3, or reproducing the information recorded on the magnetic recording region 3b, a spool taking-up the film 3, and the film roller 6 holding/pressing the film 3 between the spool 3 and the film roller 6, the film roller 6 holds and presses a region except the magnetic recording region 3b of the film 3.
Patent JP-H06193413-A (JP)
Title: Valve timing control device
Inventor: MORIYA YOSHITO
IPC: F01L1/34
Filed: 1992-12-25
Abstract: PURPOSE:To stably provide an intermediate rotary phase of a camshaft and simplify the structure. CONSTITUTION:On the inner peripheral surface side of a timing pulley 6, that is, on the inner peripheral surface of a cap 4, an intermediate stopper 24 is provided on the intermediate part of a moving stroke in the axial direction of a first piston 11, and between the first piston 11 and the cap 4, a second piston 25 having a contact surface 25c capable of making contact with and separating from the intermediate stopper 24 is provided on the front end part of the first piston 11. An ECU (electronic control unit) 40 switches and controls electromagnetic switching valves 29, 30 in accordance with a driving state and controls hydraulic pressure applied on a pressure chamber 12. At the time when a comparatively small pressure is applied, in the state where the second piston 25 is in contact with the intermediate stopper 24, the first piston 11 and the second piston 25 are both stably held in an intermediate position. At the time when a comparatively large hydraulic pressure is applied, in the state where the second piston 25 is in contact with the intermediate stopper 24, only the first piston 11 is moved.
Patent JP-H05178357-A (JP)
Title: Engaging mechanism between bottle and its lid
Inventor: KANEKAWA YUTAKA
IPC: B65D41/16
Filed: 1991-12-27
Abstract: PURPOSE:To provide an engaging mechanism between a bottle and its lid, which sufficiently keeps the sealed condition of the bottle after the bottle has been opened, and at the same time, by which the fitting or removing of the lid is easy, and by which the commodity value is improved. CONSTITUTION:The title engaging mechanism consists of a bottle 1 with an ovalshaped bottle mouth, and a lid 2 with a rectangular shape, which is turnable with a small angle relatively to the bottle mouth, under the lid 2 is fitted on the bottle mouth. On external side wall 8 which corresponds with the longer diameter, a shorter diameter of the bottle mouth, a first protuberance 5 is provided, and on the inner wall of the lid 2, a second protuberance 6, which moves on the lower surface 10 of the first protuberance 5 accompanying with a turning motion, is provided.