Patents by Inventor Mitsuru Yamamoto

Mitsuru Yamamoto 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: 20150057447
    Abstract: Disclosed is a salt and crystal of a 2-(oxazole-2-yl)phenol derivative which are the intermediate in the process of producing a N-phenyl-N?-phenylsulfonyl piperazine derivative. Further disclosed is a method of producing the salt and the crystal of the compound represented by Formula(I): wherein X is halogen; as well as a process of producing N-phenyl-N?-phenylsulfonyl piperazine derivative through the salt.
    Type: Application
    Filed: March 29, 2013
    Publication date: February 26, 2015
    Inventors: Hideyuki Kitamura, Satoshi Goda, Mitsuru Yamamoto
  • Patent number: 8720531
    Abstract: An electronic device cooling apparatus including a cooling device including a heat conductive plate formed with a flow path, a circulating pump, a liquid storage tank upper chamber and lower chamber provided on the upper and lower side of the heat conductive plate, and a bypass provided with the heat conductive plate so as to allow the cooling medium to pass through the liquid storage tank upper chamber and the liquid storage tank lower chamber.
    Type: Grant
    Filed: January 26, 2007
    Date of Patent: May 13, 2014
    Assignees: NEC Corporation, Showa Denko K.K.
    Inventors: Tomotaka Ishida, Mitsuru Yamamoto, Sakae Kitajo, Kazuo Taga, Kazuhiro Kumakura
  • Patent number: 8718537
    Abstract: A communication system has a controller for transmitting data to be played back by a plurality of playback devices corresponding to a plurality of channels, and a plurality of adapters required for executing playback by the playback devices. The controller has a setting unit which sets data to be played back by the playback devices and control information required to control playback of the data in time slots of a sync transmission frame, and a transmission unit which transmits the sync transmission frame the by the setting unit to the adapters. Each adapter has a reception unit which receives the transmitted sync transmission frame, and a playback control unit which extracts data corresponding to the channel to be played back by the adapter from the sync transmission frame, and controls the playback timing of the data based on control information corresponding to the data.
    Type: Grant
    Filed: August 31, 2007
    Date of Patent: May 6, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tsuguhide Sakata, Mitsuru Yamamoto, Ichiro Kato, Yasunori Ohora
  • Patent number: 8308453
    Abstract: A pump chamber (15) is formed between a piezoelectric vibrator (7) and a valve main plate (10). The valve main plate (10) includes an inlet port (13) at its central portion, and an outlet port (14) in its peripheral portion, and the inlet port (13) is made in a smaller diameter than the outlet port (14). On the valve main plate (10) an inflow check valve (11) and an outflow check valve (12) are provided, so that when the inflow check valve (11) and the outflow check valve (12) open and close in response to the vibration of the piezoelectric vibrator (7), a fluid is introduced into and discharged from the pump chamber (15).
    Type: Grant
    Filed: January 15, 2008
    Date of Patent: November 13, 2012
    Assignee: NEC Corporation
    Inventors: Mitsuru Yamamoto, Kazuhito Murata, Sakae Kitajo
  • Patent number: 8081460
    Abstract: A liquid-cooled heat radiator 1 includes a heat radiation base 2 having a cooling-liquid channel 5, and an expansion tank 7 provided on the heat radiation base 2. The expansion tank 7 has a tank body 26 having an expanded portion 27, which expands upward and opens downward, and a bottom plate 28 joined to the lower end of the tank body 26 to thereby close a bottom opening of the expanded portion 27. A through-hole 29 is formed in the top wall of the expanded portion 27 of the tank body 26 and serves as a communication section for establishing communication between the interior and the exterior of the cooling-liquid channel 5. A hydrogen-permeable member 31 is fixedly fitted into the through-hole 29 so as to stop the through-hole 29. The hydrogen-permeable member 31 satisfies the relation B?50 A, where A and B are water-vapor permeability and hydrogen permeability, respectively, of the hydrogen-permeable member 31.
    Type: Grant
    Filed: January 23, 2007
    Date of Patent: December 20, 2011
    Assignees: NEC Corporation, Showa Denko K.K.
    Inventors: Tomotaka Ishida, Mitsuru Yamamoto, Sakae Kitajo, Kazuhiro Kumakura
  • Patent number: 7782854
    Abstract: This invention constructs within the LAN a private area network (PAN) which is configured by terminal devices (personal computers and the like) of a specific group, is hardly influenced by the LAN traffic, and has high security. For this purpose, a PAN server which manages the communication route between specific terminals is installed within the LAN. The PAN server sets the communication route of each terminal device as label information, and causes switches and terminals to set pieces of label information generated for them. When the frame of data from a given port of each connection switch contains information representing PAN communication, the connection switch outputs the data to only a port specified by routing label information described in the frame.
    Type: Grant
    Filed: August 6, 2004
    Date of Patent: August 24, 2010
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tsuguhide Sakata, Yukichi Niwa, Kenji Nakamura, Mitsuru Yamamoto, Noboru Yamamoto, Hiroyuki Yatsu
  • Publication number: 20100155035
    Abstract: A liquid-cooled heat radiator 1 includes a heat radiation base 2 having a cooling-liquid channel 5, and an expansion tank 7 provided on the heat radiation base 2. The expansion tank 7 has a tank body 26 having an expanded portion 27, which expands upward and opens downward, and a bottom plate 28 joined to the lower end of the tank body 26 to thereby close a bottom opening of the expanded portion 27. A through-hole 29 is formed in the top wall of the expanded portion 27 of the tank body 26 and serves as a communication section for establishing communication between the interior and the exterior of the cooling-liquid channel 5. A hydrogen-permeable member 31 is fixedly fitted into the through-hole 29 so as to stop the through-hole 29. The hydrogen-permeable member 31 satisfies the relation B?50 A, where A and B are water-vapor permeability and hydrogen permeability, respectively, of the hydrogen-permeable member 31.
    Type: Application
    Filed: January 23, 2007
    Publication date: June 24, 2010
    Applicant: NEC CORPORATION
    Inventors: Tomotaka Ishida, Mitsuru Yamamoto, Sakae Kitajo, Kazuhiro Kumakura
  • Patent number: 7738927
    Abstract: An in-vehicle hand-free apparatus that is for ensuring hand-free talk by a short-range wireless communication system in compliance with the Bluetooth includes a notification unit which notifies the status of the in-vehicle hand-free apparatus. As the in-vehicle hand-free apparatus notifies the status thereof by the notification unit, the user can easily perceive the status of the in-vehicle hand-free apparatus.
    Type: Grant
    Filed: December 29, 2005
    Date of Patent: June 15, 2010
    Assignee: Honda Access Corporation
    Inventors: Eiji Ogura, Mitsuru Yamamoto, Yuko Yamada
  • Publication number: 20100074775
    Abstract: A pump chamber (15) is formed between a piezoelectric vibrator (7) and a valve main plate (10). The valve main plate (10) includes an inlet port (13) at its central portion, and an outlet port (14) in its peripheral portion, and the inlet port (13) is made in a smaller diameter than the outlet port (14). On the valve main plate (10) an inflow check valve (11) and an outflow check valve (12) are provided, so that when the inflow check valve (11) and the outflow check valve (12) open and close in response to the vibration of the piezoelectric vibrator (7), a fluid is introduced into and discharged from the pump chamber (15).
    Type: Application
    Filed: January 15, 2008
    Publication date: March 25, 2010
    Inventors: Mitsuru Yamamoto, Kazuhito Murata, Sakae Kitajo
  • Patent number: 7564164
    Abstract: A piezoelectric element of the piezoelectric pump is driven by the output signal of an amplifier that takes as input a signal that is generated by a sine wave oscillator of the same frequency that drives the piezoelectric element. The amplifier is driven by a high voltage obtained by conversion from a low-voltage power supply by a voltage-boosting converter, whereby the piezoelectric element is driven by a low-frequency sine wave of high voltage. The frequency of the sine wave oscillation is further adjusted by a signal from a first control circuit at the time of activation. In addition, the amplitude of the sine wave oscillation is adjusted by the output signal of a second control circuit that takes as input a signal from temperature sensor for sensing the temperature of the heat-generating body.
    Type: Grant
    Filed: February 1, 2005
    Date of Patent: July 21, 2009
    Assignee: NEC Corporation
    Inventors: Mitsuru Yamamoto, Sunao Hamamura, Yasuhiro Sasaki, Sakae Kitajo
  • Patent number: 7528533
    Abstract: A vibratory gyroscope including a vibrator (10) integrally having a plate-like body portion (11) spreading along a reference plane, three drive arms (12, 13, 14) extending in a first direction from the body portion along the reference plane, and two detection arms (15, 16) extending in a second direction opposite to the first direction from the body portion along the reference plane. The three drive arms are composed of two exciting drive arms (12, 13) that are excited in mutually opposite phases in the reference plane and a non-exciting drive arm (14) located between the two exciting drive arms. Each of the three drive arms has an arm width in a width direction along the reference plane and perpendicular to the first direction. Each of the two detection arms has an arm width greater than that of the drive arm in the width direction, thereby suppressing generation of vibrations along the reference plane.
    Type: Grant
    Filed: January 11, 2006
    Date of Patent: May 5, 2009
    Assignee: Japan Aviation Electronics Industry, Limited
    Inventors: Atsushi Ochi, Takeshi Inoue, Mitsuru Yamamoto, Kenji Kuramoto, Mitsuhiro Nakajima, Takeshi Hosokawa, Hiroyuki Takahashi, Takashi Nakahara
  • Publication number: 20090050301
    Abstract: A liquid storage tank 4 of an electronic device cooling apparatus that diffuses heat generated from a heat generating component by circulation of a cooling medium to carry out cooling has cooling means, an upper cover 6a, and a lower cover 6b. An upper space 7a formed by the cooling means and the upper cover 6a is spatially connected to a flow path 2 through a branch hole 8. Further, the upper space 7a is spatially connected to a lower space 7b formed by the lower cover 6b and the cooling means through a bypass 9.
    Type: Application
    Filed: January 26, 2007
    Publication date: February 26, 2009
    Applicants: NEC CORPORATION, SHOWA DENKO K.K.
    Inventors: Tomotaka Ishida, Mitsuru Yamamoto, Sakae Kitajo, Kazuo Taga, Kazuhiro Kumakura
  • Patent number: 7483261
    Abstract: A cooling device includes a cooling panel wherein a passage is formed by bonding together a bottom heat radiation plate having a groove formed therein and a top heat radiation plate, and a circulation pump circulating refrigerant within the passage. The top heat radiation plate is provided with an outlet port through which the refrigerant flows out from the passage to the circulation pump and an inlet port through which the refrigerant flows in from the circulation pump to the passage. The circulation pump is fixed onto the top heat radiation plate of the cooling panel so that the suction port and discharge port are aligned with the outlet port and inlet port, respectively.
    Type: Grant
    Filed: June 25, 2004
    Date of Patent: January 27, 2009
    Assignee: NEC Corporation
    Inventors: Kazuyuki Mikubo, Sakae Kitajo, Atsushi Ochi, Mitsuru Yamamoto
  • Patent number: 7420807
    Abstract: The present invention provides a cooling apparatus which is easy to build and to fix it to electronic devices, superior in thermal conduction and heat dissipation, and possible to make thin the total configuration of the apparatus. The liquid cooling unit 9 and the air cooling unit 12 are formed in a unit. A heat absorption surface 19 of the liquid cooling unit 9 is contacted or bonded to the heat generation component such as the CPU and the heat generator, which have the largest power consumption and also locally generate heat within a small area in the box 2. In the liquid cooling unit 9, a liquid cooling pump 14 composed of an electromagnetic pump is arranged for circulating the coolant in the flow path 10. The heat generated by the heat generation components such as CPU 6, heat generator 7, and the like is thermally diffused with heat conduction into the whole liquid cooling unit 9 by circulating the coolant with the liquid cooling pump 14.
    Type: Grant
    Filed: August 18, 2003
    Date of Patent: September 2, 2008
    Assignee: NEC Corporation
    Inventors: Kazuyuki Mikubo, Sakae Kitajo, Yasuhiro Sasaki, Atsushi Ochi, Mitsuru Yamamoto
  • Publication number: 20080110600
    Abstract: The present invention provides a cooling apparatus which is easy to build and to fix it to electronic devices, superior in thermal conduction and heat dissipation, and possible to make thin the total configuration of the apparatus. The liquid cooling unit 9 and the air cooling unit 12 are formed in a unit. A heat absorption surface 19 of the liquid cooling unit 9 is contacted or bonded to the heat generation component such as the CPU and the heat generator, which have the largest power consumption and also locally generate heat within a small area in the box 2. In the liquid cooling unit 9, a liquid cooling pump 14 composed of an electromagnetic pump is arranged for circulating the coolant in the flow path 10. The heat generated by the heat generation components such as CPU 6, heat generator 7, and the like is thermally diffused with heat conduction into the whole liquid cooling unit 9 by circulating the coolant with the liquid cooling pump 14.
    Type: Application
    Filed: November 28, 2007
    Publication date: May 15, 2008
    Applicant: NEC CORPORATION
    Inventors: Kazuyuki MIKUBO, Sakae KITAJO, Yasuhiro SASAKI, Atsushi OCHI, Mitsuru YAMAMOTO
  • Publication number: 20080111451
    Abstract: A vibratory gyroscope including a vibrator (10) integrally having a plate-like body portion (11) spreading along a reference plane, three drive arms (12, 13, 14) extending in a first direction from the body portion along the reference plane, and two detection arms (15, 16) extending in a second direction opposite to the first direction from the body portion along the reference plane. The three drive arms are composed of two exciting drive arms (12, 13) that are excited in mutually opposite phases in the reference plane and a non-exciting drive arm (14) located between the two exciting drive arms. Each of the three drive arms has an arm width in a width direction along the reference plane and perpendicular to the first direction. Each of the two detection arms has an arm width greater than that of the drive arm in the width direction, thereby suppressing generation of vibrations along the reference plane.
    Type: Application
    Filed: January 11, 2006
    Publication date: May 15, 2008
    Inventors: Atsushi Ochi, Takeshi Inoue, Mitsuru Yamamoto, Kenji Kuramoto, Mitsuhiro Nakajima, Takeshi Hosokawa, Hiroyuki Takahashi, Takashi Nakahara
  • Publication number: 20080063216
    Abstract: A communication system has a controller for transmitting data to be played back by a plurality of playback devices corresponding to a plurality of channels, and a plurality of adapters required for executing playback by the playback devices. The controller has a setting unit which sets data to be played back by the playback devices and control information required to control playback of the data in time slots of a sync transmission frame, and a transmission unit which transmits the sync transmission frame the by the setting unit to the adapters. Each adapter has a reception unit which receives the transmitted sync transmission frame, and a playback control unit which extracts data corresponding to the channel to be played back by the adapter from the sync transmission frame, and controls the playback timing of the data based on control information corresponding to the data.
    Type: Application
    Filed: August 31, 2007
    Publication date: March 13, 2008
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Tsuguhide Sakata, Mitsuru Yamamoto, Ichiro Kato, Yasunori Ohora
  • Publication number: 20070242427
    Abstract: A drive circuit of a piezoelectric pump that is both light and compact, that can drive a piezoelectric pump with a low level of undesired noise, and that can further realize with low power consumption a coolant device capable of reliable operation at the time of activation. A piezoelectric element of the piezoelectric pump is driven by the output signal of an amplifier that takes as input a signal that is generated by a sine wave oscillator of the same frequency that drives the piezoelectric element. The amplifier is driven by a high voltage obtained by conversion from a low-voltage power supply by a voltage-boosting converter, whereby the piezoelectric element is driven by a low-frequency sine wave of high voltage. The frequency of the sine wave oscillation is further adjusted by a signal from a first control circuit at the time of activation.
    Type: Application
    Filed: February 1, 2005
    Publication date: October 18, 2007
    Inventors: Mitsuru Yamamoto, Sunao Hamamura, Yasuhiro Sasaki, Sakae Kitajo
  • Patent number: 7216540
    Abstract: A six-legged type piezoelectric vibration gyroscope having a pair of exciting arms extending from a body (2) in a first direction (A1) with a space therebetween, one non-exciting arm (3c) extending in the first direction between the exciting arms from the body, a pair of detecting arms (4a, 4b) extending from the body in a second direction (A2) with a space therebetween, and one non-detecting arm (4c) extending in the second direction between the detecting arms from the body. The exciting arms are coupled with a drive-side electrode. The detecting arms are coupled with a detection-side electrode. The exciting arms, non-exciting arm, detecting arms, and non-detecting arm respectively consist of a piezoelectric. The respective exciting arms differ in width size from the non-exciting arm. The respective exciting arms differ in width size from the respective detecting arms. The respective exciting arms differ in width size from the non-detecting arm.
    Type: Grant
    Filed: March 5, 2004
    Date of Patent: May 15, 2007
    Assignees: Nec Corporation, Japan Aviation Electronics Industry Limited
    Inventors: Takeshi Inoue, Mitsuru Yamamoto, Atsushi Ochi, Kenji Kuramoto, Mitsuhiro Nakajima
  • Publication number: 20070065308
    Abstract: A diaphragm pump enabling an increase in pump efficiency by reducing the pressure loss of liquid and reduction in thickness. The flow passage in piezoelectric pump (1) includes a pressure chamber (50) formed into a flat shape in cross section and a suction side flow passage (70a) and discharge side flow passage (70b). The suction side flow passage (70a) and the discharge side flow passage (70b) are disposed at both ends of the pressure chamber (50) so that the axes thereof are aligned with each other. The check valves (20a, 20b) are respectively disposed on the suction side flow passage (70a) and the discharge side flow passage (70b), and are tilted relative to the flow direction of the liquid.
    Type: Application
    Filed: July 21, 2004
    Publication date: March 22, 2007
    Inventors: Mitsuru Yamamoto, Yasuhiro Sasaki, Atsushi Ochi, Sakae Kitajo