Patents by Inventor Masami Iwamoto

Masami Iwamoto 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).

  • Publication number: 20030234672
    Abstract: A clock generation apparatus includes a first clock generation circuit which generates a clock signal by making state transition in synchronization with a master clock signal after exiting from a predetermined state in response to a timing signal supplied from an exterior of the apparatus, a counter which counts clock pulses of the master clock signal after exiting from a reset state in response to the timing signal, and a reset circuit which resets the counter and sets the first clock generation circuit in the predetermined state in response to the count of the counter reaching a first predetermined value.
    Type: Application
    Filed: June 10, 2003
    Publication date: December 25, 2003
    Applicant: FUJITSU LIMITED
    Inventors: Akio Kato, Masami Iwamoto, Hirokazu Asami, Tadahito Miura
  • Publication number: 20030237023
    Abstract: An associated development-support apparatus for a semiconductor device enables highly accurate debugging and verification of operations. An emulator stub acquires event information by using a communication control unit, where the event is generated in a debugger, the event information is generated by a debugger stub according to an event, and transmitted by the debugger stub through a communication network. An emulator control unit analyzes the acquired event information, and controls an emulator according to the analyzed event so as to perform emulation processing which virtually emulates operations of the semiconductor device corresponding to the event based on hardware design information. The emulator stub acquires results of the event which is generated in association with the operations of the semiconductor device virtually emulated by the emulator, and notifies the debugger of the results of the event through the communication network and the debugger stub.
    Type: Application
    Filed: June 20, 2003
    Publication date: December 25, 2003
    Applicant: Fujitsu Limited
    Inventors: Tetsuya Satoh, Masami Iwamoto, Seiya Itoh, Yuichi Ozawa
  • Publication number: 20020092998
    Abstract: A leaf spring for urging a spool toward a flange part of a yoke is provided between a guide fixed to a housing and the spool. Owing to the urging force of the leaf spring, the spool is pressed against the flange part of the yoke, and the yoke can be pressed against the cover through the spool. Thus it is possible to prevent the spool and the yoke from loosening. Further because the leaf spring is provided for each magnet valve, the leaf spring can be commonly used for respective modes of a fluid control apparatus and thus the cost can be reduced.
    Type: Application
    Filed: December 6, 2001
    Publication date: July 18, 2002
    Inventors: Shigeki Torii, Moriharu Sakai, Masuhiro Kondo, Masami Iwamoto, Takayuki Shibata
  • Patent number: 6354674
    Abstract: A hydraulic control apparatus integrated with motor circuit unit, in which waterproof for preventing liquid such as water from entering an electronic substrate or the like accommodated in a circuit unit housing can be efficiently performed. A hydraulic control apparatus is provided with a hydraulic unit for adjusting brake fluid pressure, and a motor driving circuit unit for actuating a motor for adjusting the brake fluid pressure and integrally assembled with the hydraulic unit. An ECU for controlling the brake fluid pressure is separately provided from the motor driving circuit unit. The motor driving circuit unit is provided with a circuit unit housing constructed by a case portion made of resin and a cover made of resin. The circuit unit housing is divided into an electronic substrate portion for accommodating an electronic substrate, and an operation portion for accommodating a solenoid and a pressure sensor by partition walls provided at the case portion and the cover.
    Type: Grant
    Filed: December 10, 1999
    Date of Patent: March 12, 2002
    Assignee: Denso Corporation
    Inventors: Masami Iwamoto, Toru Fujita, Nobuhiko Yoshioka
  • Patent number: 6260394
    Abstract: A forming method of forming a plate-shaped workpiece using a female tool having a concave section of a desired shape and a male tool which matches with the female tool, includes the following steps: providing an elastic punch in a cylindrical holder provided in the male tool; pressurizing and compressing the elastic punch relatively by a pressuring member; pressing the holder against the workpiece by means of one portion of the elastic punch; and projecting one portion of the elastic punch from the holder so as to deform a portion of the workpiece to be processed according to the shape of the concave section of the female tool so that the workpiece is formed in a state such that the workpiece is nipped pressingly between the female tool and the holder.
    Type: Grant
    Filed: February 17, 2000
    Date of Patent: July 17, 2001
    Assignee: Amada Company, Limited
    Inventors: Yoshio Haraga, Masami Iwamoto
  • Patent number: 6189361
    Abstract: There provides a tool, which is capable of smoothly executing a cutting and protruding process in all the steps from the starting to ending of cutting and protruding of a small protrusion when the protrusion is cut and protruded on an upper surface of a workpiece.
    Type: Grant
    Filed: March 3, 2000
    Date of Patent: February 20, 2001
    Assignee: Amada Metrecs Company Limited
    Inventors: Masayuki Seki, Masami Iwamoto
  • Patent number: 6029486
    Abstract: A forming method of forming a plate-shaped workpiece using a female tool having a concave section of a desired shape and a male tool which matches with the female tool, includes the following steps: providing an elastic punch in a cylindrical holder provided in the male tool; pressurizing and compressing the elastic punch relatively by a pressuring member; pressing the holder against the workpiece by means of one portion of the elastic punch; and projecting one portion of the elastic punch from the holder so as to deform a portion of the workpiece to be processed according to the shape of the concave section of the female tool so that the workpiece is formed in a state such that the workpiece is nipped pressingly between the female tool and the holder.
    Type: Grant
    Filed: November 19, 1998
    Date of Patent: February 29, 2000
    Assignee: Amada Metrecs Company, Limited
    Inventors: Yoshio Haraga, Masami Iwamoto
  • Patent number: 5922126
    Abstract: The disclosed semiconductor liquid phase epitaxial growth method and apparatus and the wafer holder used therefor can improve the deposition of polycrystal, the non-uniformity of film thickness, the thermal deterioration of the substrate, etc. The wafer holder comprises a holder body (11) formed with at least one wafer accommodating space in which at least two semiconductor wafers (15) can be held in such a way that reverse surfaces of the two wafers are brought into contact with two opposing inner side walls of the wafer holder and right surfaces of the two wafers are opposed to each other with a predetermined space between the two; and a holder cover (12) for covering an open surface of the holder body (11). Further, the holder body (11) is formed with an inlet port (16) for injecting a source into the wafer accommodating space and an outlet port (13) for exhausting the source from the wafer accommodating space.
    Type: Grant
    Filed: May 30, 1997
    Date of Patent: July 13, 1999
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Kazuyoshi Furukawa, Masami Iwamoto
  • Patent number: 4417262
    Abstract: A green light emitting device, includes an n-type gallium phosphide (GaP) substrate, an n-type GaP layer and a p-type GaP layer laminated on the n-type GaP substrate. The net donor concentration in the n-type GaP layer decreases abruptly in steps from the GaP substrate side to the p-type GaP layer side. Nitrogen is contained in only the n-type GaP layer portion closest to the p-type GaP layer.
    Type: Grant
    Filed: April 6, 1981
    Date of Patent: November 22, 1983
    Assignee: Tokyo Shibaura Denki Kabushiki Kaisha
    Inventors: Masami Iwamoto, Makoto Tashiro, Tatsuro Beppu, Akinobu Kasami
  • Patent number: 4224632
    Abstract: A green light emitting device, includes an n-type gallium phosphide (GaP) substrate, an n-type GaP layer and a p-type GaP layer laminated on the n-type GaP substrate. The net donor concentration in the n-type GaP layer decreases abruptly in steps from the GaP substrate side to the p-type GaP layer side. Nitrogen is contained in only the n-type GaP layer portion closest to the p-type GaP layer.
    Type: Grant
    Filed: October 10, 1978
    Date of Patent: September 23, 1980
    Assignee: Tokyo Shibaura Denki Kabushiki Kaisha
    Inventors: Masami Iwamoto, Makoto Tashiro, Tatsuro Beppu, Akinobu Kasami
  • Patent number: 3951700
    Abstract: A method of manufacturing a gallium phosphide light-emitting device which characteristically comprises the step of growing a gallium phosphide layer of one conductivity type on a gallium phosphide substrate of the opposite conductivity type at a growth initiating temperature of 650.degree. to 850.degree.C by the liquid phase epitaxy process to provide a p-n junction contributing to emission of light.
    Type: Grant
    Filed: August 16, 1974
    Date of Patent: April 20, 1976
    Assignee: Tokyo Shibaura Electric Co., Ltd.
    Inventors: Tatsuro Beppu, Masami Iwamoto, Tetsuo Sekiwa
  • Patent number: 3935039
    Abstract: A method of manufacturing a green light-emitting gallium phosphide device which comprises the steps of preparing a liquid-phase epitaxial solution of one conductivity type containing a high concentration of nitrogen at a higher temperature than 1000.degree.C; bringing said epitaxial growth solution now cooled to 600.degree.C to 1000.degree.C into contact with a gallium phosphide substrate of the same conductivity type as said solution; cooling said epitaxial growth solution to form a liquid-phase epitaxial layer on said substrate; and forming a region in close proximity to said liquid-phase epitaxial layer with the opposite conductivity type thereto.
    Type: Grant
    Filed: April 3, 1974
    Date of Patent: January 27, 1976
    Assignee: Tokyo Shibaura Electric Co., Ltd.
    Inventors: Tatsuro Beppu, Masami Iwamoto, Tetsuo Sekiwa