baber/WOPTO huggingface dataset:
Patent JP-2004217608-A (JP)
Title: Method for producing (1s,2s)-2-fluorocyclopropanecarboxylic acid derivative
Inventor: IMAI MAKOTO
IPC: C07C51/377
Filed: 2003-02-10
Abstract: <P>PROBLEM TO BE SOLVED: To provide a method for the easy and selective production of an optically active compound useful as a production intermediate for antibacterial agents.  <P>SOLUTION: The (1S,2S)-2-fluorocyclopropanecarboxylic acid derivative is produced according to reaction formula (R<SP>1</SP>and R<SP>2</SP>are each a 1-6C alkyl provided that R<SP>1</SP>is same as R<SP>2</SP>or the carbon number of R<SP>2</SP>is larger than R<SP>1</SP>). The derivative is selectively produced by taking advantage of the fact that the ester on the carbon atom bonded with chlorine atom is more easily hydrolyzable between two esters of the compound of formula (I) and the compound having the two esters taking trans configuration is more easily hydrolyzable.  <P>COPYRIGHT: (C)2004,JPO&NCIPI
Patent JP-2004006659-A (JP)
Title: Semiconductor laser device
Inventor: HONDA MASAHARU
IPC: G11B7/125
Filed: 2003-02-14
Abstract: <P>PROBLEM TO BE SOLVED: To provide a semiconductor laser device in which radiation is improved by making a heat sink part columnar concentric with a base part, forming a groove along with an axial direction of the heat sink part and locating a semiconductor laser element on the bottom of the groove.  <P>SOLUTION: In a semiconductor laser device 1 in which a semiconductor laser element 9 is located in a heat sink part 4 of a package 2 composed of a circular base part 3 and the heat sink part 4, the heat sink part 4 is made columnar concentric with the base part 3, a groove 5 is formed in the axial direction of the heat sink part 4, and the semiconductor laser element 9 is located on a bottom portion 6 of the groove 5. In the package portion 2, the radiation is improved by integrally forming the base part 3 and the heat sink part 4 from a metal such as copper.  <P>COPYRIGHT: (C)2004,JPO
Patent JP-2004248011-A (JP)
Title: Set-top box for two-way communications
Inventor: TATSUTA AKIHIRO
IPC: H04N21/426
Filed: 2003-02-14
Abstract: <P>PROBLEM TO BE SOLVED: To provide a set-top box for two-way communications with which an inputted down signal can be also supplied to other equipment without incurring errors in regenerative data even when a receiving power level is low.  <P>SOLUTION: The set-top box for the two-way communications is provided with a diplexer for diplexing a down signal inputted from a coaxial cable and an up signal outputted to the coaxial cable, a down signal amplifier for amplifying the down signal outputted from the diplexer, a distributor for distributing a power for the down signal outputted from the down signal amplifier, a video receiving tuner for tuning a desired video signal among down signals outputted from the distributor, a data receiving tuner for tuning a desired receiving data signal among the down signals outputted from the distributor, a down signal switch for passing either the down signal outputted from the distributor or the down signal outputted from the diplexer, and a data transmission amplifier for amplifying a power of a transmitting data signal to output the signal to the diplexer.  <P>COPYRIGHT: (C)2004,JPO&NCIPI
Patent JP-2004247005-A (JP)
Title: Loading device
Inventor: ETO TAKAO
IPC: G11B17/04
Filed: 2003-02-17
Abstract: <P>PROBLEM TO BE SOLVED: To provide a loading device which has a long life and can moreover be miniaturized and silenced.  <P>SOLUTION: The loading device is provided with a tray 101, a drive motor 202 for generating driving force for driving the tray, a driving force transmission mechanism 200 for transmitting the driving force to the tray 101 by a gear coupling, a base 100 for supporting the tray 101 to be freely slidable, and a gear angle 201 mounted on the base via a buffer member 207. The loading device is so constructed that the drive motor 202 and the driving force transmission mechanism 200 are mounted on the gear angle 201 without contact with the base 100. Moreover, the loading device is so constructed that the tray 101 is provided with a rack 101a, and a large module driving gear 205 is arranged between the rack 101a and the driving force transmission mechanism 200 on the base 100.  <P>COPYRIGHT: (C)2004,JPO&NCIPI
Patent JP-2004251157-A (JP)
Title: Valve timing control device for engine
Inventor: NAKAI HIDEO
IPC: F02D13/02
Filed: 2003-02-18
Abstract: <P>PROBLEM TO BE SOLVED: To provide a valve timing control device for an engine capable of stabilizing engine rotational behavior in a cold state of the engine, irrespective of fuel types.  <P>SOLUTION: The valve timing control device is equipped with a variable valve system capable of changing overlapped amount of valve opening timing of an intake valve of the engine and valve closing timing of an exhaust valve of the engine and a timing control means for controlling the variable valve system. The timing control means is provided with a elapsed time detecting means for detecting elapsed time from cold starting of the engine (S204), and perform timing advancing control to position at least either of the valve opening timing of the intake valve or the valve closing timing of the exhaust valve in a timing advance side from an top dead center in an exhaust stroke (S203) until the elapsed time detected by the elapsed time detecting means reaches predetermined time.  <P>COPYRIGHT: (C)2004,JPO&NCIPI
Patent JP-2004254400-A (JP)
Title: Protection relay system
Inventor: FUKUDA SHINICHIRO
IPC: H02H3/08
Filed: 2003-02-19
Abstract: <P>PROBLEM TO BE SOLVED: To provide a protection relay system capable of immediately solving a trouble only by the operation of a subordinate protective relay in the case of some accident in power receiving and distribution equipment.  <P>SOLUTION: This protection relay system which protects the power receiving and distribution equipment for supplying electric power to a load through a plurality of branched lines from a main line, includes a host protective relay on the main line. The subordinate protective relay is provided on each of the plurality of branched lines. A control circuit is also provided which fetches a rating excess level signal of the subordinate protective relay into the host protective relay while the subordinate protective relay operates and inhibits the operation of the host protective relay, therefore even if there occurs some accident in the power receiving and distribution equipment, the problem can be removed promptly only by the operation of the subordinate protective relay.  <P>COPYRIGHT: (C)2004,JPO&NCIPI
Patent JP-2004252704-A (JP)
Title: Equipment managing device, network connecting equipment, network system, equipment managing method, program for executing the method and recording medium with the program recorded thereon
Inventor: MISAWA TENRYO
IPC: G06F13/00
Filed: 2003-02-20
Abstract: <P>PROBLEM TO BE SOLVED: To provide an equipment managing device, network connecting equipment and a network system for improving the safety of the operation of the network connecting equipment, and realizing the load reduction of the install operation of software.  <P>SOLUTION: This equipment managing device 110 stores cooperation information including the priority of the combination of software, and acquires equipment information assigned to each of a plurality of network connecting equipment 101 and 102 and software information specifying software of the status quo. When the combination of software whose priority is higher than that of the combination of software of the status quo exists in the cooperation information, the equipment managing device 110 transmits a signal notifying that the combination of software whose priority is higher than that of the combination of software of the status quo exists in the cooperation information.  <P>COPYRIGHT: (C)2004,JPO&NCIPI
Patent JP-2004260337-A (JP)
Title: Packet communication method and system
Inventor: HIRAKURI TAKESHI
IPC: H04L1/16
Filed: 2003-02-24
Abstract: <P>PROBLEM TO BE SOLVED: To provide a retransmission procedure and a collision avoiding method when Poll frames collide in a radio network having overlap of the same frequency adjacent areas on the basis of intensive control of a base station using HCF and to suppress the delay time of a data packet and a packet disposal rate.  <P>SOLUTION: A radio base station generates a random number N when a data frame from a radio terminal is not normally received after PIFS (Polling InterFrame Space) after Poll frame transmission to the radio terminal is completed, repetitively re-transmits the Poll frame for N times until the data frame is received from the radio terminal, and stops re-transmission of the Poll frame when the data frame from the radio terminal is not received after SIFS (Station InterFrame Space). When the radio terminal does not detect a carrier after carrier sensing is performed for DIFS (DCF InterFrame Space), it performs random time carrier sensing, and transmits the data frame to the radio base station when the carrier is not detected.  <P>COPYRIGHT: (C)2004,JPO&NCIPI
Patent JP-2004257487-A (JP)
Title: Half nut device
Inventor: SHINOHARA ATSUYA
IPC: F16B37/10
Filed: 2003-02-26
Abstract: <P>PROBLEM TO BE SOLVED: To provide a half nut device capable of easily and reliably performing attachment/detachment in one operation.  <P>SOLUTION: The half nut device comprises a screw rod 10, and half nut bodies 20a and 20b to be attachably/detachably screwed to the screw rod 10 by an attaching/detaching device 40. In the half nut bodies 20a and 20b, the interval L is formed in flat parts 24 and 24 facing substantially parallel to the inner side, a thread recessed part 25 is provided in a center part of the flat part 24, and cut-off parts 23 and 23 are provided in corner parts of the thread recessed part 25 and the flat part 24. In addition, springs 21 and 21 to urge the half nut bodies in a separating direction from each other, and spacers 22, 22, 22 and 22 to limit the close distance to a predetermined value are provided between the half nut bodies 20a and 20b. Springs 41 and 41 having the spring force capable of reducing the distance between the half nut bodies 20a and 20b against the urging force of the springs 21 and 21 are interposed in the attaching/detaching device 40.  <P>COPYRIGHT: (C)2004,JPO&NCIPI
Patent JP-2004259616-A (JP)
Title: Heating apparatus, fixing device, and image forming apparatus
Inventor: OKAMOTO MASAMI
IPC: H05B3/00
Filed: 2003-02-26
Abstract: <P>PROBLEM TO BE SOLVED: To solve the problem that, if ambient temperature in proximity to a fixing roller or a fixing device is low, or circumferential speed of the fixing roller is high, then surface temperature at the fixing roller becomes lower than the lower limit temperature, and consequently poor fixing occurs and good images cannot be obtained.  <P>SOLUTION: The heating apparatus has an ambient temperature detecting means for detecting ambient temperature near a heated object, and a control means 12 provides a control for power supply from an auxiliary power supply 10 to a heating means 5 in accordance with the detected temperature of the ambient temperature detecting means. As a result, temperature of the heated object will never be lower than the lower limit temperature, even if ambient temperature drops, and there is obtained the heating apparatus having the auxiliary power supply with short charging time and long lifetime. Moreover, there is obtained the fixing device in which poor fixing will not occur, even if ambient temperature drops.  <P>COPYRIGHT: (C)2004,JPO&NCIPI
Patent JP-2004256767-A (JP)
Title: Method for carbonization treatment and apparatus for carbonization treatment
Inventor: SAKAI NAOMASA
IPC: C10B53/00
Filed: 2003-02-27
Abstract: <P>PROBLEM TO BE SOLVED: To provide a method and an apparatus for carbonization treatment, which allow the completion timing of carbonization to be judged accurately and are capable of effecting economical carbonization treatment.  <P>SOLUTION: The method for carbonization treatment comprises heating combustible organic matter in a carbonization chamber 1 to carbonize the organic matter. The method involves discharging a gas within the carbonization chamber 1 outside the chamber 1 at a given flow rate during the heating of the organic matter in the chamber 1 to make the inside of the chamber 1 at the state of the given flow rate, and stopping the heating of the organic matter when lowering of pressure in the chamber 1 is detected under the state of the given flow rate.  <P>COPYRIGHT: (C)2004,JPO&NCIPI
Patent JP-2004266452-A (JP)
Title: Electronic apparatus and system control method therefor
Inventor: YUASA TOMOKAZU
IPC: H04M1/73
Filed: 2003-02-28
Abstract: <P>PROBLEM TO BE SOLVED: To provide an electronic apparatus which realizes a control for prolonging the continuous working time in driving by battery.  <P>SOLUTION: When a battery remaining power automatic detector 101 detects that the battery remaining power is below a fixed value, a central processing controller 100 instructs a radio communication device 107 to change its communication mode from a class 2 for a high output level to a class 3 for a low output level in order to reduce the power consumption to prolong the continuous working time. At this time the controller 100 instructs a D/A conversion amplifier circuit 105 to set off a Dolby system.  <P>COPYRIGHT: (C)2004,JPO&NCIPI
Patent JP-2004267077-A (JP)
Title: Method for recovering nucleic acid
Inventor: SAKURAI TOMOYA
IPC: C12N15/09
Filed: 2003-03-07
Abstract: <P>PROBLEM TO BE SOLVED: To efficiently recover ribonucleic acid and/or deoxyribonucleic acid from a sample containing a sample containing ribonucleic acid and deoxyribonucleic acid.  <P>SOLUTION: The method for recovering nucleic acid comprises bringing a low-temperature eluate into contact with a nucleic acid-capturing substance having captured ribonucleic acid (RNA) and deoxyribonucleic acid (DNA). The recovery ratio of RNA and DNA by the eluate changes with the temperature of the eluate and the low-temperature eluate has greatly larger recovery ratio of DNA than that of RNA. Consequently, DNA is efficiently recovered from the sample containing DNA and RNA.  <P>COPYRIGHT: (C)2004,JPO&NCIPI
Patent JP-2004269413-A (JP)
Title: Method for preparing fluoroalykyl iodide telomer mixture and fluorine-containing (meth)acrylic ester mixture
Inventor: TANAKA YOSHINORI
IPC: C07C69/003
Filed: 2003-03-07
Abstract: <P>PROBLEM TO BE SOLVED: To obtain a mixture of telomers having a degree n of polymerization of ≥k (k being any one integer of ≥3).  <P>SOLUTION: A fluoroalkyl iodide represented by the formula: R<SB>f</SB>I (wherein R<SB>f</SB>is a 1-10C fluoroalkyl group) is reacted with tetrafluoroethylene to obtain a reaction mixture comprising a mixture of fluoroalkyl iodide telomers represented by the formula: R<SB>f</SB>(CF<SB>2</SB>CF<SB>2</SB>)<SB>n</SB>I having a degree n of polymerization of ≥1, and this mixture is subjected to a distillation process and separated into a fraction comprising a mixture of fluoroalkyl iodide telomers having a degree n of polymerization of ≤(k-1) and a fraction comprising a mixture of fluoroalkyl iodide telomers having a degree n of polymerization of ≥k to obtain the latter fraction as a product.  <P>COPYRIGHT: (C)2004,JPO&NCIPI
Patent JP-2004269685-A (JP)
Title: Gas oil composition and its manufacturing method
Inventor: SAITO KENICHIRO
IPC: C10G65/04
Filed: 2003-03-07
Abstract: <P>PROBLEM TO BE SOLVED: To provide a gas oil composition which can achieve reduction of environmental load and improvement of fuel consumption at a high level with a good balance when used as a diesel fuel oil, and its manufacturing method.  <P>SOLUTION: The gas oil composition contains at least 20 vol% of a deeply hydrogenated refined gas oil, obtained by further hydrogenating a hydrogenated refined oil which has a sulfur content of 5-10 mass ppm and a boiling range of 150-380°C in the presence of a hydrogenation catalyst and having a 90% distillation temperature of 200-380°C, a density at 15°C of 780-870 kg/m<SP>3</SP>, a sulfur content of at most 5 mass ppm, an aromatic content of at most 10 vol% and a naphthene content of at least 30 vol%, and has properties of a sulfur content of at most 5 mass ppm, an aromatic content of at most 10 vol%, a bicyclic or higher aromatic content of at most 1 vol%, a naphthene content of at least 30 vol%, a density at 15°C of 820-840 kg/m<SP>3</SP>, a 10% distillation temperature of 250°C or lower and a 90% distillation temperature of 320°C or lower.  <P>COPYRIGHT: (C)2004,JPO&NCIPI
Patent JP-2004270310-A (JP)
Title: Trap gate door
Inventor: MURATA NORIHISA
IPC: E06B11/02
Filed: 2003-03-10
Abstract: <P>PROBLEM TO BE SOLVED: To provide a trap gate door for reducing the number of parts by keeping the working torque from a door body upon its opening and closing constant, even when the door body varies in size.  <P>SOLUTION: The trap gate door comprises a pair of struts 2, supporting arms 3, 4 whose base ends are pivotally supported on the struts 2, and the door body 5 fitted to the front end of the supporting arms 3, 4. The door body is provided with a gravity center position adjusting spindle for adjusting a position of center of gravity G of the door body 5 to be in a predetermined position in relation to a drive part 2A, and a weight adjusting spindle for adjusting the whole weight of the door body 5 to be a predetermined weight. Consequently, even when the door body 5 varies in size, the torque working on the drive part 2A from the door body 5 upon opening and closing of the door is kept constant, and the parts are used in common so that the number of parts may be reduced, since it is not necessary to prepare the drive part 2A or the strut 2 for each door body 5 varying in size and weight.  <P>COPYRIGHT: (C)2004,JPO&NCIPI
Patent JP-2004274432-A (JP)
Title: Wireless access system
Inventor: ONISHI NAOKI
IPC: H04L69/40
Filed: 2003-03-10
Abstract: <P>PROBLEM TO BE SOLVED: To provide a wireless access system capable of providing a communication quality guaranteed by a system by receiving a signal from a subscriber station equipment at a base station equipment and measuring a frame error rate (FER), performing transmission power control based on the frame error rate, and reducing a load pertaining to transmission power control on the base station equipment side even under a high speed communication environment, thereby rationalizing transmission power from the subscriber station equipment and enhancing transmission quality.  <P>SOLUTION: The base station equipment 1 receives a signal from an arbitrary subscriber station equipment 2 and measures a frame error rate, and then converts the measurements into a digital value being transmitted to the subscriber station equipment 2 while being included in an ordinary downlink frame. The subscriber station equipment 2 prestores a specified frame error rate and a transmission power limit value and regulates the transmission power within the range of the limit value such that the frame error rate satisfies a specified value.  <P>COPYRIGHT: (C)2004,JPO&NCIPI
Patent JP-2004270322-A (JP)
Title: Snow plow
Inventor: FUJII DAISUKE
IPC: E01H5/09
Filed: 2003-03-10
Abstract: <P>PROBLEM TO BE SOLVED: To improve the efficiency of snow removal by improving the biting capacity of a snow removal section and operability and reducing the physical load of an operator.  <P>SOLUTION: In a snow plow on which a snow removal part is attached to a traveling section formed of a traveling frame provided with a traveling device, a motor, and an operating part for operator's operation, the snow removal part is moved up and down by a link mechanism and a single actuator provided in a mounting part, and further, moved back and forth. When moving up and down the snow removal part in the case that the snow removal part raised up from the ground face, a backward inclining angle is formed and in the case that the snow removal part is lowered down from a grounding face, a foreward inclining angle is formed. The foreward inclining angle is made larger than the backward inclining angle.  <P>COPYRIGHT: (C)2004,JPO&NCIPI
Patent JP-2004268106-A (JP)
Title: Gas leakage prevention structure of upper plate for gas blowing
Inventor: MUKOYAMA KENICHI
IPC: B22D11/10
Filed: 2003-03-10
Abstract: <P>PROBLEM TO BE SOLVED: To facilitate the positioning of a gas introduction pipe, and to facilitate production, when the gas introduction pipe is inserted into a pipe insertion hole and a sealing agent is filled therein, even in the case a gap part sufficient for the filling of the sealing agent is formed between the outer circumference of the gas introduction pipe and the circumferential wall of the pipe insertion hole.  <P>SOLUTION: The gas leakage prevention structure of an upper plate for gas blowing has a gas introduction pipe 3 for blowing an inert gas into a molten metal outflow hole 2a provided on the upper plate 2, and a pipe insertion hole 4 into which the gas introduction pipe 3 is inserted so as to form a gap part 4a. Further, the structure has a sealing agent filling hole 4b provided on the upper plate 2, communicating with the pipe insertion hole 4, and filling a sealing agent 5 into the gap part 4a, an annular protrusion 3a projecting from the outer circumferential face of the gas introduction pipe 3 to the outside, abutted against the circumferential wall 4c of the pipe insertion hole 4 and closing the gas part 4a, and the sealing agent 5 filled into the gap part 4a.  <P>COPYRIGHT: (C)2004,JPO&NCIPI
Patent JP-2003338932-A (JP)
Title: Image data generator
Inventor: SAKUYAMA HIROYUKI
IPC: H04N19/186
Filed: 2003-03-11
Abstract: <P>PROBLEM TO BE SOLVED: To provide an apparatus for generating a reduced image having a small volume of calculations involved therewith.  <P>SOLUTION: The image data generator 10 generating reduced image data of an original image is provided with inverse wavelet transform means 11 for performing inverse wavelet transformation of wavelet coefficients and coefficient selection means 12. The coefficient selection means 12 selects, from among wavelet coefficients in a subband of the same decomposition level, the wavelet coefficient that is to be subjected to inverse wavelet transformation. The inverse wavelet transformation means 11 subjects only the wavelet coefficients selected by the coefficient selection means 12 to generate the reduced image data for the wavelet coefficients in the subband on the same decomposition level.  <P>COPYRIGHT: (C)2004,JPO
Patent JP-2004281705-A (JP)
Title: Signal transmitting circuit and its manufacturing method
Inventor: USUI RYOSUKE
IPC: H01L21/822
Filed: 2003-03-14
Abstract: <P>PROBLEM TO BE SOLVED: To protect a circuit element from electrostatic breakdown and, at the same time, to transmit high-speed signals in a semiconductor circuit.  <P>SOLUTION: The semiconductor circuit contains an input terminal 50, a protective circuit 56 which discharges a voltage of a prescribed value or higher when the voltage is impressed, and a cell 10 containing the circuit element. The protective circuit 56 and cell 10 are connected to the input terminal 50 in branched states. On wiring 18c connected with the cell 10, a resistor R<SB>2</SB>is disposed so that the resistance value of the wiring 18c may become higher than that of the wiring 18b connected with the protective circuit 56. In addition, a section 54 to be cut is formed on the wiring 18b.  <P>COPYRIGHT: (C)2005,JPO&NCIPI