Patents by Inventor Kazuo Tanaka

Kazuo Tanaka 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).

  • Patent number: 10801977
    Abstract: A radiation analyzing apparatus includes a radiation irradiation unit configured to irradiate an object with a first radiation, a radiation detection unit configured to detect a second radiation generated from the object irradiated with the first radiation, a radiation converging unit configured to disposed between the object and the radiation detection unit and to converge the second radiation on the radiation detection unit, a position changing unit configured to vary a relative positional relationship between the radiation converging unit and the radiation detection unit, and a driving unit configured to change the positional relationship.
    Type: Grant
    Filed: March 22, 2017
    Date of Patent: October 13, 2020
    Assignee: HITACHI HIGH-TECH SCIENCE CORPORATION
    Inventors: Atsushi Nagata, Satoshi Nakayama, Keiichi Tanaka, Kazuo Chinone
  • Publication number: 20200321927
    Abstract: A power amplifier apparatus includes a semiconductor substrate, a plurality of first transistors on the semiconductor substrate, a plurality of second transistors, at least one collector terminal electrically connected to collectors of the plurality of first transistors, a first inductor having a first end electrically connected to the collector terminal and a second end electrically connected to a power supply potential, at least one emitter terminal electrically connected to emitters of the plurality of second transistors and adjacent to the collector terminal in a second direction, a second inductor having a first end electrically connected to the emitter terminal and a second end electrically connected to a reference potential, and at least one capacitor having a first end electrically connected to the collectors of the plurality of first transistors and a second end electrically connected to the emitters of the plurality of second transistors.
    Type: Application
    Filed: April 3, 2020
    Publication date: October 8, 2020
    Inventors: Toshikazu TERASHIMA, Fumio HARIMA, Makoto ITOU, Satoshi TANAKA, Kazuo WATANABE, Satoshi ARAYASHIKI, Chikara YOSHIDA
  • Patent number: 10794229
    Abstract: A binary cycle power generation system includes a working fluid circulation line, an evaporator, an expander, an energy recovery apparatus, a condenser, and a pump. The pump includes a casing, a rotary shaft, and impellers. The casing is hollow and has an end wall at an end in a longitudinal direction. The rotary shaft has an axis extending in the longitudinal direction of the casing, is supported on the end wall, has at least a part that is in the casing, and rotates owing to a torque. The impellers are attached to the rotary shaft one after another in the longitudinal direction. The pump is arranged in such a way that the axis of the rotary shaft intersects a vertical direction.
    Type: Grant
    Filed: January 18, 2018
    Date of Patent: October 6, 2020
    Assignee: Kobe Steel, Ltd.
    Inventors: Kazuo Takahashi, Yuji Tanaka, Shigeto Adachi, Yutaka Narukawa, Kazumasa Nishimura
  • Patent number: 10793378
    Abstract: According to an embodiment, a transfer apparatus includes a gripper, a first driving mechanism, an elastic passive joint part, a conveyor, a second driving mechanism, and base. The gripper grips an article. The first driving mechanism linearly moves the gripper in at least two directions including a first direction and a second direction intersecting with the first direction. The elastic passive joint part is interposed between the gripper and the first driving mechanism, and operates in accordance with an operation of the gripper. The conveyor conveys the article. The second driving mechanism linearly moves the conveyor in the at least two directions, and is connected to the conveyor. The base supports the first driving mechanism and the second driving mechanism.
    Type: Grant
    Filed: May 24, 2019
    Date of Patent: October 6, 2020
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Junya Tanaka, Kazuo Watabe, Akihito Ogawa, Hideichi Nakamoto, Takafumi Sonoura, Haruna Eto
  • Publication number: 20200313629
    Abstract: A power amplifier circuit includes a first transistor, a capacitor, and a second transistor. The first transistor has an emitter electrically connected to a reference potential, a base, and a collector electrically connected to a first power supply potential. A first end of the capacitor is electrically connected to the collector of the first transistor. The second transistor has an emitter electrically connected to a second end of the capacitor and electrically connected to the reference potential, a base, and a collector electrically connected to the first power supply potential. An RF output signal obtained by amplifying the RF input signal is output from the collector of the second transistor. A second bias circuit includes a third transistor having a collector electrically connected to a second power supply potential, a base, and an emitter from which the second bias current or voltage is output.
    Type: Application
    Filed: March 24, 2020
    Publication date: October 1, 2020
    Inventors: Toshikazu TERASHIMA, Satoshi TANAKA, Kazuo WATANABE, Makoto ITOU, Jun ENOMOTO
  • Publication number: 20200304070
    Abstract: The present disclosure is to improve the power added efficiency of a power amplifier at high output power. The power amplifier includes: a first capacitor with a radio frequency signal input to one end thereof; a first transistor whose base is connected to the other end of the first capacitor to amplify the radio frequency signal; a bias circuit for supplying bias to the base of the first transistor; and a second capacitor with one end connected to the base of the first transistor and the other end connected to the emitter of the first transistor.
    Type: Application
    Filed: June 9, 2020
    Publication date: September 24, 2020
    Inventors: Kazuo Watanabe, Satoshi Tanaka, Norio Hayashi, Kazuma Sugiura
  • Publication number: 20200304071
    Abstract: A power amplifier circuit includes an amplifier that receives an input signal with an alternating current and outputs an output signal obtained by amplifying power of the input signal to a first node; an inductive element that is connected between the first node and a second node; and a variable capacitor that is connected between the second node and a reference potential, and whose electrostatic capacitance increases as power of the output signal increases.
    Type: Application
    Filed: June 10, 2020
    Publication date: September 24, 2020
    Inventors: Satoshi Tanaka, Masatoshi HASE, Norio HAYASHI, Kazuo WATANABE, Yuuri HONDA
  • Publication number: 20200304073
    Abstract: A power amplifier circuit includes an amplifier transistor having a first terminal supplied with a power supply voltage that changes in accordance with an amplitude level of an input signal, and a second terminal supplied with the input signal and a bias current, an amplified signal obtained by amplifying the input signal being outputted from the first terminal, a bias circuit that outputs the bias current from an output terminal thereof in accordance with a reference current supplied to an input terminal thereof, and a regulation circuit that generates a regulation current for regulating the bias current in accordance with a change in the power supply voltage. The regulation current increases with an increase in the power supply voltage, and decreases with a decrease in the power supply voltage. The regulation circuit extracts the regulation current from at least one of the reference current or the bias current.
    Type: Application
    Filed: March 17, 2020
    Publication date: September 24, 2020
    Inventors: Satoshi TANAKA, Kazuo WATANABE, Satoshi ARAYASHIKI
  • Patent number: 10747135
    Abstract: A toner including a toner particle; and an external additive, wherein the external additive contains strontium titanate particle, and when in a projected image of the strontium titanate particle photographed using a scanning electron microscope, a standard deviation of a distance from a center of the projected image to an outline of the projected image is Ds, and a circle-equivalent diameter of the projected image is Da, a value CV calculated by Equation (1) is 0.07 or less, CV=Ds/(Da/2)??(1).
    Type: Grant
    Filed: February 26, 2019
    Date of Patent: August 18, 2020
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Yojiro Hotta, Koji Nishikawa, Kazuo Terauchi, Takaaki Furui, Ryo Nagata, Keisuke Tanaka, Masami Fujimoto
  • Patent number: 10741983
    Abstract: An L-shaped coaxial connector having a coaxial cable includes a coaxial cable including a central conductor portion and an external conductor portion disposed around the central conductor portion and a center conductor portion, an internal terminal connected to the central conductor portion, an external terminal connected to the external conductor portion, and an insulating member disposed between the internal and external terminals. The external terminal includes a cylindrical portion surrounding the first terminal portion and extending in a cylindrical shape in a direction intersecting an axial direction of the coaxial cable. The internal terminal includes a male type first terminal portion having a cylindrical shape and extending in the direction intersecting the axial direction, and a second terminal portion extending to connect from the first terminal portion to the central conductor portion.
    Type: Grant
    Filed: November 27, 2019
    Date of Patent: August 11, 2020
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Yukihiro Kitaichi, Aoi Tanaka, Kenichi Takada, Fumio Mizuki, Kazuo Shima, Daisuke Okada
  • Publication number: 20200243035
    Abstract: A method for driving a display device capable of appropriately performing idle driving even when timing information is not transmitted to a liquid crystal module in advance is provided. In a case where, in one vertical period, a non-scanning period other than a scanning period in which a screen of a display unit (11) is scanned once is set to a pause period, a liquid crystal module (101) delays supply of a data signal to the display unit (11) by a recovery period during which a source driver (12) is recovered from a sleep state to an active state in the pause period.
    Type: Application
    Filed: July 25, 2018
    Publication date: July 30, 2020
    Inventors: YUTA TANAKA, KAZUO NAKAMURA, KAZUKI TAKAHASHI, JIN MIYAZAWA
  • Patent number: 10715084
    Abstract: A power amplifier circuit includes an amplifier that receives an input signal with an alternating current and outputs an output signal obtained by amplifying power of the input signal to a first node; an inductive element that is connected between the first node and a second node; and a variable capacitor that is connected between the second node and a reference potential, and whose electrostatic capacitance increases as power of the output signal increases.
    Type: Grant
    Filed: September 20, 2018
    Date of Patent: July 14, 2020
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Satoshi Tanaka, Masatoshi Hase, Norio Hayashi, Kazuo Watanabe, Yuuri Honda
  • Publication number: 20200209194
    Abstract: A concentration measuring instrument includes a piezoelectric vibrator transmitting an ultrasonic wave into a solution contained in a cavity and detecting the ultrasonic wave reflected, a temperature sensor measuring a temperature of the solution, a drive circuit generating a drive signal driving the piezoelectric vibrator, a phase comparator performing a phase comparison between the drive signal and a detection signal, a frequency setting circuit making the drive circuit generate drive signals having sequentially different frequencies and monitoring a phase comparison result to detect a resonant frequency, and a Phase Locked Loop (PLL) circuit making a frequency of the drive signal follow the detected resonant frequency. A microcomputer determines a concentration of a solute in the solution on a basis of the frequency of the drive signal while the PLL circuit is being operated and a result of a temperature measurement by the temperature sensor.
    Type: Application
    Filed: March 6, 2020
    Publication date: July 2, 2020
    Applicant: Tyco Electronics Japan G.K.
    Inventors: Tsuyoshi Tanaka, Heewon Jeong, Kazuo Hasegawa
  • Publication number: 20200212846
    Abstract: A power amplifier circuit includes a first transistor; a first bias circuit that supplies a first bias current or voltage; a capacitor; a first inductor; a second inductor; a second transistor; a second bias circuit that supplies a second bias current or voltage; a third inductor; a third transistor; a third bias circuit that supplies a third bias current or voltage; and a fourth inductor.
    Type: Application
    Filed: December 19, 2019
    Publication date: July 2, 2020
    Inventors: Satoshi TANAKA, Kazuo WATANABE, Satoshi ARAYASHIKI
  • Publication number: 20200197905
    Abstract: A method for manufacturing a carbon dioxide adsorbent includes: forming a kneaded product containing a hydrophilic fiber, a powdery porous material, and an aqueous hydrophilic binder dispersion into particles and drying the particles to generate porous material particles containing the hydrophilic fiber and the powdery porous material combined by the hydrophilic binder; and preparing an aqueous amine solution having an amine concentration of 5% or more and 70% or less and a temperature of 10° C. or higher and 100° C. or lower, impregnating the aqueous amine solution into the porous material particles, and aeration-drying the porous material particles impregnating the amine. The carbon dioxide adsorbent contains the porous material particles and the amine carried by the porous material particles, the porous material particles containing the hydrophilic fiber and the powdery porous material combined by the hydrophilic binder.
    Type: Application
    Filed: April 26, 2018
    Publication date: June 25, 2020
    Applicant: KAWASAKI JUKOGYO KABUSHIKI KAISHA
    Inventors: Masahiro NEGAMI, Takeshi OKUMURA, Ikuo SHIMOMURA, Katsuhiro YOSHIZAWA, Yoshimichi NOMURA, Kazuo TANAKA, Shohei NISHIBE
  • Patent number: 10693418
    Abstract: The present disclosure is to improve the power added efficiency of a power amplifier at high output power. The power amplifier includes: a first capacitor with a radio frequency signal input to one end thereof; a first transistor whose base is connected to the other end of the first capacitor to amplify the radio frequency signal; a bias circuit for supplying bias to the base of the first transistor; and a second capacitor with one end connected to the base of the first transistor and the other end connected to the emitter of the first transistor.
    Type: Grant
    Filed: May 3, 2017
    Date of Patent: June 23, 2020
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Kazuo Watanabe, Satoshi Tanaka, Norio Hayashi, Kazuma Sugiura
  • Publication number: 20200195210
    Abstract: A power amplifier circuit includes a lower-stage transistor having a first power supply voltage supplied to a first terminal, a second terminal connected to ground, and a first signal supplied to a third terminal; an upper-stage transistor having a second power supply voltage supplied to a first terminal, a second signal obtained by amplifying the first signal being output from the first terminal, a second terminal connected to the first terminal of the lower-stage transistor via a first capacitor, and a third terminal connected to ground via a ground path; an inductor that connects the second terminal of the upper-stage transistor to ground; and an adjustment circuit that adjusts impedance seen from the third terminal of the upper-stage transistor. The adjustment circuit includes a second capacitor and at least one resistance element connected in series with the ground path between the third terminal of the upper-stage transistor and ground.
    Type: Application
    Filed: December 10, 2019
    Publication date: June 18, 2020
    Inventors: Satoshi TANAKA, Kazuo WATANABE, Norio HAYASHI, Makoto ITOU
  • Publication number: 20200119468
    Abstract: An electric wire with a terminal, includes an insulated wire which includes a core wire and an insulating layer covering the core wire, a seal member which is disposed in one end portion of the insulated wire and covers the insulating layer, a metal terminal which extends from the end portion of the insulated wire and is connected to the core wire and a waterproof resin portion which covers from a seal member covering part of the insulated wire to an electrical connection part of the metal terminal. The insulating layer contains an olefin resin. The waterproof resin portion contains a polyester, a polyamide, an ethylene-vinyl acetate copolymer, or a mixed resin thereof. The seal member includes an inner layer containing an ethylene resin and an outer layer laminated on the inner layer and containing a polyester, a polyamide, an ethylene-vinyl acetate copolymer, or a mixed resin thereof.
    Type: Application
    Filed: December 20, 2017
    Publication date: April 16, 2020
    Applicants: SUMITOMO ELECTRIC INDUSTRIES, LTD., AUTONETWORKS TECHNOLOGIES, LTD., SUMITOMO WIRING SYSTEMS, LTD.
    Inventors: Shigeyuki TANAKA, Taro FUJITA, Shinya NISHIKAWA, Kazuo NAKASHIMA, Tetsuya NAKAMURA
  • Publication number: 20200099180
    Abstract: An L-shaped coaxial connector having a coaxial cable includes a coaxial cable including a central conductor portion and an external conductor portion disposed around the central conductor portion and a center conductor portion, an internal terminal connected to the central conductor portion, an external terminal connected to the external conductor portion, and an insulating member disposed between the internal and external terminals. The external terminal includes a cylindrical portion surrounding the first terminal portion and extending in a cylindrical shape in a direction intersecting an axial direction of the coaxial cable. The internal terminal includes a male type first terminal portion having a cylindrical shape and extending in the direction intersecting the axial direction, and a second terminal portion extending to connect from the first terminal portion to the central conductor portion.
    Type: Application
    Filed: November 27, 2019
    Publication date: March 26, 2020
    Applicant: Murata Manufacturing Co., Ltd.
    Inventors: Yukihiro KITAICHI, Aoi TANAKA, Kenichi TAKADA, Fumio MIZUKI, Kazuo SHIMA, Daisuke OKADA
  • Publication number: 20200083845
    Abstract: A power amplifier circuit includes a first amplifier that amplifies an input signal and outputs an output signal; a second amplifier that, in accordance with a control signal, amplifies a signal corresponding to the input signal, generates a signal having an opposite phase to that of the output signal, and adds the signal to the output signal; and a control circuit that supplies the control signal to the second amplifier. The control circuit outputs the control signal so that during operation of the power amplifier circuit in a first power mode, a gain of the second amplifier is not less than zero and less than a predetermined level and during operation in a second power mode lower than the first power mode in output power level, a gain of the second amplifier is not less than the predetermined level and less than a gain of the first amplifier.
    Type: Application
    Filed: August 13, 2019
    Publication date: March 12, 2020
    Inventors: Satoshi TANAKA, Satoshi ARAYASHIKI, Kazuo WATANABE