Patents by Inventor Tetsuya Iida

Tetsuya Iida 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).

  • Method of manufacturing semiconductor device and semiconductor device
    Patent number: 9355890
    Abstract: Disclosed is a miniaturized semiconductor device having an SOI layer, in which: a silicon layer is formed over a semiconductor substrate via an BOX film; after the silicon layer is patterned by using a nitride film as a mask, an insulating film covering the surface of each of the nitride film, the silicon layer, and the BOX film is formed; subsequently, an opening, which penetrates the insulating film and the BOX film and which exposes the upper surface of the semiconductor substrate, is formed, and an epitaxial layer is formed in the opening; subsequently, the SOI region and a bulk silicon layer are formed over the semiconductor substrate by flattening the upper surface of the epitaxial layer with the use of the nitride film as an etching stopper film.
    Type: Grant
    Filed: January 24, 2013
    Date of Patent: May 31, 2016
    Assignee: RENESAS ELECTRONICS CORPORATION
    Inventor: Tetsuya Iida
  • Tractor
    Patent number: 9315219
    Abstract: A tractor comprises a seat, a safety frame, a vehicle body frame, right and left attachment brackets, a front frame and a roof frame. The safety frame has two struts standing from right and left side portions rearward from the seat. The right and left attachment brackets are fixed on both right and left outer surfaces of the vehicle body frame. The front frame is formed in a gate shape in front view so as to have right and left lower portions detachably attached to the right and left attachment brackets. The roof frame is detachably attached so as to connect a right or left upper portion of the front frame to a right or left upper portion of the safety frame.
    Type: Grant
    Filed: June 27, 2014
    Date of Patent: April 19, 2016
    Assignee: Yanmar Co., Ltd.
    Inventors: Michael Knoblett, Tetsuya Iida, Yutaka Matsui, Takashi Goto
  • SEMICONDUCTOR DEVICE AND METHOD OF MANUFACTURING SAME
    Publication number: 20150333118
    Abstract: To provide a semiconductor device including a power semiconductor element having improved reliability. The semiconductor device has a cell region and a peripheral region formed outside the cell region. The n type impurity concentration of n type column regions in the cell region is made higher than that of n type column regions comprised of an epitaxial layer in the peripheral region. Further, a charge balance is kept in each of the cell region and the peripheral region and each total electric charge is set so that a total electric charge of first p type column regions and a total electric charge of n type column regions in the cell region become larger than a total electric charge of third p type column regions and n type column regions comprised of an epitaxial layer in the peripheral region, respectively.
    Type: Application
    Filed: May 6, 2015
    Publication date: November 19, 2015
    Inventors: Satoshi EGUCHI, Tetsuya IIDA, Akio ICHIMURA, Yuya ABIKO
  • PYRIMIDINE COMPOUND AND MEDICAL USE THEREOF
    Publication number: 20150183812
    Abstract: The present invention relates to a pyrimidine compound or a pharmaceutically acceptable salt thereof represented by the following formula [I] wherein each symbol is as defined in the specification and a method of therapeutically or prophylactically treating an undesirable cell proliferation, comprising administering such a compound. The compound of the present invention has superior activity in suppressing undesirable cell proliferation, particularly, an antitumor activity, and is useful as an antitumor agent for the prophylaxis or treatment of cancer, rheumatism, and the like. In addition, the compound of the present invention can be a more effective antitumor agent when used in combination with other antitumor agents such as an alkylating agent or metabolism antagonist.
    Type: Application
    Filed: August 7, 2014
    Publication date: July 2, 2015
    Inventors: Hisashi KAWASAKI, Hiroyuki ABE, Kazuhide HAYAKAWA, Tetsuya IIDA, Shinichi KIKUCHI, Takayuki YAMAGUCHI, Toyomichi NANAYAMA, Hironori KURACHI, Masahiro TAMARU, Yoshikazu HORI, Mitsuru TAKAHASHI, Takayuki YOSHIDA, Toshiyuki SAKAI
  • LIFTING LINK MECHANISM
    Publication number: 20150107212
    Abstract: For providing a lift linkage with easy mounting operation, this invention provides a lifting link mechanism which lifts a mower deck comprising: a front bracket attached to a front portion of the mower deck, a front link coupled to the front bracket, a rear bracket attached to a rear portion of the mower deck, and a rear link coupled to the rear bracket, wherein a protrusion formed in the rear link is fit into a notch portion of the roar bracket and at least the rear link is coupled in a rotatable manner about the protrusion.
    Type: Application
    Filed: June 30, 2014
    Publication date: April 23, 2015
    Inventors: Tetsuya IIDA, Masato Kan, Takashi Goto
  • TRACTOR
    Publication number: 20150108789
    Abstract: A tractor comprises a seat, a safety frame, a vehicle body frame, right and left attachment brackets, a front frame and a roof frame, The safety frame has two struts standing from right and left side portions rearward from the seat. The right and left attachment brackets are fixed on both right and left outer surfaces of the vehicle body frame. The front frame is formed in a gate shape in front view so as to have right and left lower portions detachably attached to the right and left attachment brackets. The roof frame is detachably attached so as to connect a right or left upper portion of the front frame to a right or left upper portion of the safety frame.
    Type: Application
    Filed: June 27, 2014
    Publication date: April 23, 2015
    Inventors: Michael KNOBLETT, Tetsuya IIDA, Yutaka MATSUI, Takashi GOTO
  • CABLE UNIT FOR VEHICLE
    Publication number: 20150050833
    Abstract: A cable unit includes a first connector, a second connector, and a cable. The first connector is connected with a terminal block of a transaxle case. The second connector is connected with a terminal block of a power control unit case. The cable connects the first connector with the second connector. The cable is routed into a curved shape to be curved three-dimensionally. And the cable is deformed when the transaxle case and the power control unit case move relative to each other as a vehicle is driven.
    Type: Application
    Filed: August 13, 2014
    Publication date: February 19, 2015
    Inventors: Tatsuhiko Mizutani, Haruki Kusamaki, Takuya Tate, Hiroyuki Matsuoka, Hirotaka Baba, Tetsuya Iida, Junpei Nakamoto
  • Pyrimidine compound and medical use thereof
    Patent number: 8835443
    Abstract: The present invention relates to a pyrimidine compound or a pharmaceutically acceptable salt thereof represented by the following formula [I] wherein each symbol is as defined in the specification and a method of therapeutically or prophylactically treating an undesirable cell proliferation, comprising administering such a compound. The compound of the present invention has superior activity in suppressing undesirable cell proliferation, particularly, an antitumor activity, and is useful as an antitumor agent for the prophylaxis or treatment of cancer, rheumatism, and the like. In addition, the compound of the present invention can be a more effective antitumor agent when used in combination with other antitumor agents such as an alkylating agent or metabolism antagonist.
    Type: Grant
    Filed: November 25, 2009
    Date of Patent: September 16, 2014
    Assignee: Japan Tobacco Inc.
    Inventors: Hisashi Kawasaki, Hiroyuki Abe, Kazuhide Hayakawa, Tetsuya Iida, Shinichi Kikuchi, Takayuki Yamaguchi, Toyomichi Nanayama, Hironori Kurachi, Masahiro Tamaru, Yoshikazu Hori, Mitsuru Takahashi, Takayuki Yoshida, Toshiyuki Sakai
  • CONNECTING APPARATUS FOR POWER CABLE
    Publication number: 20140199894
    Abstract: The cables are configured to supply electric power from an inverter to a motor. The cables include a connector and plural terminals fixed to the connector. A housing of the connector includes a first rib, provided between the adjacent terminals, connecting mutually facing surfaces of the housing. The terminal block is attached to an enclosure of the inverter or motor. The terminal block includes plural retaining walls, each of which encloses and retains a nut. The terminal block includes a second rib connecting adjacent retaining walls. One of the first and second ribs includes a recess. The connector is connected to the terminal block when each of the terminals is fastened to the terminal block with a bolt and the nut. The other of the first and second ribs is disposed in the recess and the ribs intersect when the connector is connected to the terminal block.
    Type: Application
    Filed: January 10, 2014
    Publication date: July 17, 2014
    Applicants: SUMITOMO WIRING SYSTEMS, LTD., TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Haruki Kusamaki, Tetsuya Iida, Hiroyuki Matsuoka, Takuya Tate
  • Power amplification circuit having transformer
    Patent number: 8779855
    Abstract: In order to realize a wider bandwidth of a frequency characteristic of a power amplification circuit, outputs of differential push-pull amplifiers which are matched at respectively different frequencies are combined together by secondary inductors, and the combined signal is outputted.
    Type: Grant
    Filed: May 29, 2013
    Date of Patent: July 15, 2014
    Assignee: Renesas Electronics Corporation
    Inventors: Tetsuya Iida, Akihiko Furukawa, Satoshi Yamakawa, Tsuyoshi Kawakami, Masao Kondo, Yutaka Hoshino
  • Gate protection diode for high-frequency power amplifier
    Patent number: 8669610
    Abstract: A high-frequency power amplifier of the type to be mounted in an RF module for mobile phones having high-frequency power field effect transistors and gate protective diodes which are coupled between the gates and the sources of the high-frequency power field effect transistors. The gate protective diodes have an n type region formed over the main surface of a p type epitaxial layer, a first p type region formed at the center of the main surface of the n type region, a second p type region formed over the main surface of the epitaxial layer around the n type region from the periphery of the main surface of the n type region, and p+ type buried layers for coupling the second p type region to a substrate body. The distance between the end portions of the p+ type buried layers and the n+ type region is 7 ?m or more.
    Type: Grant
    Filed: October 5, 2012
    Date of Patent: March 11, 2014
    Assignee: Renesas Electronics Corporation
    Inventors: Hideyuki Ono, Tetsuya Iida
  • Work vehicle
    Patent number: 8666609
    Abstract: A tractor includes booms, lift cylinders, a hitch, dump cylinders, a magnetic valve, a speed-up circuit, and a speed-up restricting arm. The lift cylinders swing the booms upward and downward by an operating oil being supplied thereto. The hitch is provided to the booms to allow an implement to be attached thereto. The dump cylinders swing the implement upward and downward by the operating oil being supplied thereto. The magnetic valve switches between supplying the operating oil to the dump cylinders and supplying the operating oil to a grab cylinder provided in the implement. The speed-up circuit is able to perform a speed-up operation for increasing the flow rate of the operating oil supplied to the magnetic valve. The speed-up restricting arm is arranged near the speed-up circuit.
    Type: Grant
    Filed: January 31, 2011
    Date of Patent: March 4, 2014
    Assignee: Yanmar Co., Ltd.
    Inventor: Tetsuya Iida
  • Sealing cover for electric equipment mounted on car
    Patent number: 8610005
    Abstract: A sealing cover (10) is provided for closing an opening of an equipment case that accommodates electric equipment of a car. The electric equipment includes a circuit with an operation control portion for switching a main circuit from an operating state to a shutdown state in accordance with signals inputted to an input terminal thereof. The sealing cover (10) has a cover body (11) mounted on the equipment case to close the open part. An interlocking connector (35) is provided on the cover body (11) and is connected to the input terminal when the cover body (11) is mounted on the equipment case and disconnected from the input terminal when the cover body (11) is removed from the equipment case to switch the main body circuit from the operating state to the shutdown state.
    Type: Grant
    Filed: October 27, 2010
    Date of Patent: December 17, 2013
    Assignee: Sumitomo Wiring Systems, Ltd.
    Inventors: Tetsuya Iida, Kouji Sakakura
  • POWER AMPLIFICATION CIRCUIT HAVING TRANSFORMER
    Publication number: 20130265109
    Abstract: In order to realize a wider bandwidth of a frequency characteristic of a power amplification circuit, outputs of differential push-pull amplifiers which are matched at respectively different frequencies are combined together by secondary inductors, and the combined signal is outputted.
    Type: Application
    Filed: May 29, 2013
    Publication date: October 10, 2013
    Inventors: Tetsuya IIDA, Akihiko FURUKAWA, Satoshi YAMAKAWA, Tsuyoshi KAWAKAMI, Masao KONDO, Yutaka HOSHINO
  • Power amplification circuit having transformer
    Patent number: 8461927
    Abstract: In order to realize a wider bandwidth of a frequency characteristic of a power amplification circuit, outputs of differential push-pull amplifiers which are matched at respectively different frequencies are combined together by secondary inductors, and the combined signal is outputted.
    Type: Grant
    Filed: November 13, 2012
    Date of Patent: June 11, 2013
    Assignee: Renesas Electronics Corporation
    Inventors: Tsuyoshi Kawakami, Akihiko Furukawa, Satoshi Yamakawa, Tetsuya Iida, Masao Kondo, Yutaka Hoshino
  • SEMICONDUCTOR DEVICE
    Publication number: 20130026577
    Abstract: A high-frequency power amplifier of the type to be mounted in an RF module for mobile phones having high-frequency power field effect transistors and gate protective diodes which are coupled between the gates and the sources of the high-frequency power field effect transistors. The gate protective diodes have an n type region formed over the main surface of a p type epitaxial layer, a first p type region formed at the center of the main surface of the n type region, a second p type region formed over the main surface of the epitaxial layer around the n type region from the periphery of the main surface of the n type region, and p+ type buried layers for coupling the second p type region to a substrate body. The distance between the end portions of the p+ type buried layers and the n+ type region is 7 ?m or more.
    Type: Application
    Filed: October 5, 2012
    Publication date: January 31, 2013
    Inventors: Hideyuki ONO, Tetsuya IIDA
  • Power amplification circuit having transformer
    Patent number: 8330544
    Abstract: In order to realize a wider bandwidth of a frequency characteristic of a power amplification circuit, outputs of differential push-pull amplifiers which are matched at respectively different frequencies are combined together by secondary inductors, and the combined signal is outputted.
    Type: Grant
    Filed: February 6, 2012
    Date of Patent: December 11, 2012
    Assignee: Renesas Electronics Corporation
    Inventors: Tsuyoshi Kawakami, Akihiko Furukawa, Satoshi Yamakawa, Tetsuya Iida, Masao Kondo, Yutaka Hoshino
  • Gate protection diode for high-frequency power amplifier
    Patent number: 8294204
    Abstract: A high-frequency power amplifier of the type to be mounted in an RF module for mobile phones having high-frequency power field effect transistors and gate protective diodes which are coupled between the gates and the sources of the high-frequency power field effect transistors. The gate protective diodes have an n type region formed over the main surface of a p type epitaxial layer, a first p type region formed at the center of the main surface of the n type region, a second p type region formed over the main surface of the epitaxial layer around the n type region from the periphery of the main surface of the n type region, and p+ type buried layers for coupling the second p type region to a substrate body. The distance between the end portions of the p+ type buried layers and the n+ type region is 7 ?m or more.
    Type: Grant
    Filed: March 25, 2011
    Date of Patent: October 23, 2012
    Assignee: Renesas Electronics Corporation
    Inventors: Hideyuki Ono, Tetsuya Iida
  • Work Vehicle
    Publication number: 20120195727
    Abstract: A tractor includes booms, lift cylinders, a hitch, dump cylinders, a magnetic valve, a speed-up circuit, and a speed-up restricting arm. The lift cylinders swing the booms upward and downward by an operating oil being supplied thereto. The hitch is provided to the booms to allow an implement to be attached thereto. The dump cylinders swing the implement upward and downward by the operating oil being supplied thereto. The magnetic valve switches between supplying the operating oil to the dump cylinders and supplying the operating oil to a grab cylinder provided in the implement. The speed-up circuit is able to perform a speed-up operation for increasing the flow rate of the operating oil supplied to the magnetic valve. The speed-up restricting arm is arranged near the speed-up circuit.
    Type: Application
    Filed: January 31, 2011
    Publication date: August 2, 2012
    Applicant: Yanmar Co., Ltd.
    Inventor: Tetsuya IIDA
  • POWER AMPLIFICATION CIRCUIT HAVING TRANSFORMER
    Publication number: 20120133431
    Abstract: In order to realize a wider bandwidth of a frequency characteristic of a power amplification circuit, outputs of differential push-pull amplifiers which are matched at respectively different frequencies are combined together by secondary inductors, and the combined signal is outputted.
    Type: Application
    Filed: February 6, 2012
    Publication date: May 31, 2012
    Applicant: Renesas Electronics Corporation
    Inventors: Tsuyoshi KAWAKAMI, Akihiko FURUKAWA, Satoshi YAMAKAWA, Tetsuya IIDA, Masao KONDO, Yutaka HOSHINO