Patents by Inventor Junji Ito
Junji Ito has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20020063270Abstract: A high frequency switch circuit device includes an FET to be a switching element on a semiconductor substrate. The FET includes an n-type well, a gate electrode, a source layer and a drain layer. An n-type well line to be connected to an n-type well layer to be a back gate is connected to a voltage supply node via an inductor. The flow of a high frequency signal between the voltage supply node and the n-type well layer is blocked by the inductor, and the flow of a high frequency signal in the vertical direction is blocked by a depletion layer extending between the n-type well and a p-type substrate region. Moreover, the flow of a high frequency signal in the horizontal direction is blocked by a trench separation insulative layer.Type: ApplicationFiled: November 27, 2001Publication date: May 30, 2002Inventors: Toshifumi Nakatani, Junji Ito, Ikuo Imanishi
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Patent number: 6338940Abstract: A silver halide photographic light sensitive material IS DISCLOSED, comprising a support having thereon a yellow dye image forming layer, a magenta dye image forming layer and a cyan dye image forming layer, wherein when the photographic material is subjected to exposure of not more than 10−3 sec. per pixel element and further to color developing to form yellow, magenta and cyan images, a variation at multiple exposure, based on non-multiple exposure, of an average gradation, which is a slope that connects two pints corresponding to densities of 0.5 and 1.5 on a characteristic curve of each of the yellow, magenta and cyan images, is not more than 10%.Type: GrantFiled: June 11, 1999Date of Patent: January 15, 2002Assignee: Konica CorporationInventors: Kazuhiro Miyazawa, Junji Ito, Yumiko Nimura, Shinichi Suzuki, Makoto Kaga, Shuji Murakami
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Patent number: 6328799Abstract: A coating apparatus includes (1) a robot including at least one movable portion, at least one motor for driving the movable portion, and at least one pressurized chamber in which the motor for driving the movable portion is disposed; and (2) a coating device including a coating gun, a paint feed pump and a motor for driving the paint feed pump, the coating device being mounted to the robot. The motor for driving the paint feed pump is disposed in the pressurized chamber.Type: GrantFiled: November 3, 1999Date of Patent: December 11, 2001Assignees: Toyota Jidosha Kabushiki Kaisha, Kawasaki Jukogyo Kabushiki KaishaInventors: Masahiro Inoue, Masashi Murate, Masahito Sakakibara, Junji Ito, Masaki Nakagawa
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Patent number: 6322960Abstract: A silver halide emulsion is disclosed, containing silver halide grains having a chloride content of not less than 90 mol %, wherein the silver halide grains each are internally doped with compound (A), compound (B) and compound (C); compounds (A) and (B) each meeting specified requirements and compound (C) being an iridium compound.Type: GrantFiled: February 25, 2000Date of Patent: November 27, 2001Assignee: Konica CorporationInventors: Shuji Murakami, Koichiro Kuroda, Yumiko Osawa, Junji Ito, Shinichi Suzuki
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Patent number: 6281890Abstract: A liquid crystal panel is turned on upon power ON, and wastes electric power. A liquid crystal drive circuit of this invention has a shift register (111) for receiving an input signal IN and a clock CLK, and shifting the signal IN, an output selection circuit (112) for receiving a shifted signal Q1 and a frame signal FR, and outputting signals SEL1 to SEL4, an output buffer (113) for receiving the signals SEL1 to SEL4 and voltages V1 to V4, and outputting one of these voltages, a selection control circuit (21) for receiving signals Q157 to Q160 output from shift register units in four continuous blocks from the final stage, and for determining abnormal operation and outputting signals S1 and /S1 when all the input signals are at a predetermined level, and a clock control circuit (12) for inputting a given signal to the shift register unit (111) upon reception of the signals S1 and /S1 so as to make the shift register unit (111) operate as an inverter array.Type: GrantFiled: June 17, 1998Date of Patent: August 28, 2001Assignee: Kabushiki Kaisha ToshibaInventor: Junji Ito
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Publication number: 20010011539Abstract: A fuel vapor treatment or recovery system for an automotive internal combustion engine. The system comprises a canister containing a fuel vapor adsorbing material. A membrane separation module is provided to be connected to the canister and including a separation membrane for separating a mixture gas into an air-rich component and a fuel vapor-rich component. The separation membrane has an air-selective permeability so that the air-rich component is be able to pass through the separation membrane, the mixture gas containing air and fuel vapor. Additionally, a gas transporting device is provided to be connected to the canister, for causing purge gas to be introduced into the canister to purge fuel vapor from the fuel vapor adsorbing material and causing fuel vapor purged from the canister to be fed to the membrane separation module.Type: ApplicationFiled: February 8, 2001Publication date: August 9, 2001Applicant: NISSAN MOTOR CO., LTD.Inventors: Masashi Ito, Mikio Kawai, Kazuhiko Shinohara, Hiroshi Akama, Junji Ito
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Patent number: 6252460Abstract: An inventive FET balun transformer uses a positive power supply alone, not a negative one, thus downsizing a device including the balun transformer. In the FET balun transformer, a voltage supplied from the positive power supply is divided by a voltage divider consisting of a pair of resistors. The gate of a first FET is biased at a positive voltage, which is obtained by getting the divided supply voltage further divided by a first resistor. The gate of a second FET is grounded with an AC grounded capacitor interposed therebetween and biased at a positive voltage, which is obtained by getting the divided supply voltage further divided by a second resistor. Thus, the gate and source of a third FET do not have to be set at a negative potential, but may be grounded directly and via a biasing resistor, respectively.Type: GrantFiled: January 11, 2000Date of Patent: June 26, 2001Assignee: Matsushita Electric Industrial Co., Ltd.Inventor: Junji Ito
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Patent number: 6235455Abstract: The image forming method comprising the steps of subjecting a silver halide photographic light-sensitive material comprising an yellow image forming layer, a magenta image forming layer and a cyan image forming layer to scanning exposure with a light beam so that an exposure time is not more than 10−13 second per pixel, and developing the photographic material by a color developer, wherein the maximum exposure amount (Emax) is controlled by an output of a calibration patch, and a difference between the logarithm of the exposure amount necessary to give a density of 0.3 and the logarithm of Emax is within the range of from 0.35 to 0.6 in each of the yellow, magenta and cyan image forming layers.Type: GrantFiled: April 20, 2000Date of Patent: May 22, 2001Assignee: Konica CorporationInventors: Junji Ito, Kazuhiro Miyazawa
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Patent number: 6139289Abstract: A magnetically coupled pump including a housing partitioned into a pump chamber and a motor chamber by a partition wall. An impeller is mounted in the pump chamber. The stator of the motor is mounted in the motor chamber. The rotating shaft of the impeller is received in a recess formed in the partition wall. The rotating shaft is held by a bearing mounted in the recess. An annular permanent magnet is mounted to the side of the body of the impeller which faces the partition wall and arranged about the rotating shaft. An annular sliding contact portion is formed at an end of the bearing and makes a sliding contact with the side of the body of the impeller facing the partition wall. A pair of annular auxiliary sliding contact portions are formed in a part of the rotating shaft and in a part of the bearing, respectively. The auxiliary sliding contact portions start to make a sliding contact with each other when the annular sliding contact portion is worn by a given amount.Type: GrantFiled: February 19, 1999Date of Patent: October 31, 2000Assignee: Aisan Kogyookabushiki KaishaInventors: Hirohisa Obata, Junji Ito
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Patent number: 6095770Abstract: A magnetically coupled pump comprising a housing partitioned into a pump chamber and a motor chamber by a partition wall. An impeller is mounted in the pump chamber. The stator of the motor is mounted in the motor chamber. The rotating shaft of the impeller is received in a recess formed in the partition wall. The rotating shaft is held by a bearing mounted in the recess. An annular permanent magnet is mounted to the side of the body of the impeller which faces the partition wall and arranged about the rotating shaft. An annular sliding contact portion is formed at an end of the bearing and makes a sliding contact with the side of the body of the impeller facing the partition wall. A pair of annular auxiliary sliding contact portions are formed in a part of the rotating shaft and in a part of the bearing, respectively. The auxiliary sliding contact portions start to make a sliding contact with each other when the annular sliding contact portion is worn by a given amount.Type: GrantFiled: February 19, 1999Date of Patent: August 1, 2000Assignee: Aisan Kogyo Kabushiki KaishaInventors: Hirohisa Obata, Junji Ito
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Patent number: 5982236Abstract: A high-frequency power amplifier comprises a transistor for high-frequency power which operates and whose current-voltage characteristics greatly change when positive voltage is supplied on its input terminal, an input bias circuit, an output bias circuit, an input impedance matching circuit, an output impedance matching circuit, and a positive voltage generation circuit. The positive voltage generation circuit comprises a detection circuit which detects part of the high-frequency power which is entered to or outputted from the transistor for high-frequency power, a rectification circuit which rectifies the part of the high-frequency power outputted from the detection circuit and outputs pulsating positive voltage, and a smoothing circuit which smoothes the pulsating positive voltage outputted from the rectification circuit and outputs positive voltage.Type: GrantFiled: January 20, 1998Date of Patent: November 9, 1999Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Osamu Ishikawa, Takahiro Yokoyama, Taketo Kunihisa, Junji Ito, Masaaki Nishijima, Shinji Yamamoto
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Patent number: 5972573Abstract: An image forming method of a silver halide light sensitive photographic material including a color image forming layer containing a silver halide emulsion and a dye providing material is disclosed, the image forming method comprising the steps of developing the exposed photographic material with a first processing solution and subjecting the developed photographic material to amplification with a second processing solution, wherein the first processing solution contains a black-and-white developing agent and a color developing agent.Type: GrantFiled: April 14, 1998Date of Patent: October 26, 1999Assignee: Konica CorporationInventors: Kazuhiro Miyazawa, Shigeo Tanaka, Noriyuki Kokeguchi, Yoshihiko Suda, Junji Ito
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Patent number: 5924851Abstract: A magnetically coupled pump comprising a housing whose interior is partitioned into a pump chamber and a motor chamber by a partition wall. An impeller is mounted in the pump chamber. The stator of the motor is mounted in the motor chamber. The rotating shaft of the impeller is received in a recess formed in the partition wall. The rotating shaft is held by a bearing mounted in the recess. An annular permanent magnet is mounted to the side of the body of the impeller which faces the partition wall and arranged about the rotating shaft. An annular sliding contact portion is formed at an end of the bearing and makes a sliding contact with the side of the body of the impeller facing the partition wall. A pair of annular auxiliary sliding contact portions are formed in a part of the rotating shaft and in a part of the bearing, respectively. The auxiliary sliding contact portions start to make a sliding contact with each other when the annular sliding contact portion is worn by a given amount.Type: GrantFiled: November 14, 1996Date of Patent: July 20, 1999Assignee: Aisan Kogyo Kabushiki KaishaInventors: Hirohisa Obata, Junji Ito
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Patent number: 5825207Abstract: An output buffer circuit includes first and second transistors of a first conductivity type, having first terminals connected in common and second terminals connected to first and second power supplies. The output buffer circuit also includes third and fourth transistors of a second conductivity type, having first terminals connected in common and second terminals connected to third and fourth power supplies. First and second resistors connected in series are connected between a common connecting point of the first and second transistors, and a common connecting point of the third and fourth transistors. A connecting neutral point serves as an output terminal. Damage resulting from excessive current or pass-through current when executing a switching process can thereby be prevented.Type: GrantFiled: July 19, 1996Date of Patent: October 20, 1998Assignee: Kabushiki Kaisha ToshibaInventor: Junji Ito
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Patent number: 5525156Abstract: An apparatus for epitaxially growing a chemical-compound crystal, a plurality of raw-material gases are alternately introduced into a closed chamber of a crystal growing device to grow the crystal placed within the closed chamber. At growing of the crystal, a light from a light source is emitted to a crystal growing film of the crystal. Intensity of a light reflected from the crystal growing film and received by a photo detector is measured. Charge amounts of the respective raw-material gases are controlled by a control system on the basis of a change in the reflected-light intensity, thereby controlling a growing rate of the growing film.Type: GrantFiled: March 10, 1995Date of Patent: June 11, 1996Assignees: Research Development Corporation, Nobuaki Manada, Junji Ito, Toru Kurabayashi, Jun-Ichi NichizawaInventors: Nobuaki Manada, Junji Ito, Toru Kurabayashi, Jun-Ichi Nishizawa
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Patent number: 5463977Abstract: In a method of and an apparatus for epitaxially growing a chemical-compound crystal, a plurality of raw-material gasses are alternately introduced into a closed chamber of a crystal growing device to grow the crystal placed within the closed chamber. At growing of the crystal, a light from a light source is emitted to a crystal growing film of the crystal. Intensity of a light reflected from the crystal growing film and received by a photo detector is measured. Charge amounts of the respective raw-material gasses are controlled by a control system on the basis of a change in the reflected-light intensity, thereby controlling a growing rate of the growing film.Type: GrantFiled: July 15, 1993Date of Patent: November 7, 1995Assignees: Research Development Corporation, Nobuaki Manada, Toru Kurabayashi, Jun-Ichi NishizawaInventors: Nobuaki Manada, Junji Ito, Toru Kurabayashi, Jun-ichi Nishizawa