Patents by Inventor Kiyoshi Nemoto

Kiyoshi Nemoto 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: 8930169
    Abstract: A capacitive ultrasonic transducer (c-MUT) comprising a silicon substrate and a transducer element which comprises transducer cells, each of which is constituted by a first electrode equipped on the top surface of the silicon substrate, a second electrode placed opposite to the first electrode with a predetermined gap therefrom and a membrane for supporting the second electrode, wherein a trench is equipped between the adjacent transducers and a conductive film is formed in the trench.
    Type: Grant
    Filed: March 4, 2011
    Date of Patent: January 6, 2015
    Assignee: Olympus Corporation
    Inventors: Hideo Adachi, Katsuhiro Wakabayashi, Akiko Mizunuma, Atsushi Osawa, Tatsuo Kaimai, Shinji Yasunaga, Kiyoshi Nemoto, Miyuki Murakami, Kousei Tamiya, Yu Kondo
  • Patent number: 8398551
    Abstract: It becomes possible to obtain high sound pressure in a high frequency domain by a capacitive ultrasonic transducer which comprises a membrane on which one electrode is formed, a cavity constructed in its backface, and a substrate on which these are mounted and supported and on whose surface an electrode is provided, on a surface in an ultrasonic transmission and reception side, characterized in that the membrane comprises tow or more layers, and at least one layer of them comprises a high dielectric constant film.
    Type: Grant
    Filed: February 6, 2008
    Date of Patent: March 19, 2013
    Assignee: Olympus Corporation
    Inventors: Hideo Adachi, Yukihiko Sawada, Katsuhiro Wakabayashi, Akiko Mizunuma, Takuya Imahashi, Etsuko Omura, Yoshiyuki Okuno, Shuji Otani, Miyuki Murakami, Kiyoshi Nemoto, Kozaburo Suzuki, Naomi Shimoda
  • Publication number: 20110213592
    Abstract: A capacitive ultrasonic transducer (c-MUT) comprising a silicon substrate and a transducer element which comprises transducer cells, each of which is constituted by a first electrode equipped on the top surface of the silicon substrate, a second electrode placed opposite to the first electrode with a predetermined gap therefrom and a membrane for supporting the second electrode, wherein a trench is equipped between the adjacent transducers and a conductive film is formed in the trench.
    Type: Application
    Filed: March 4, 2011
    Publication date: September 1, 2011
    Applicant: OLYMPUS CORPORATION
    Inventors: Hideo Adachi, Katsuhiro Wakabayashi, Akiko Mizunuma, Atsushi Osawa, Tatsuo Kaimai, Shinji Yasunaga, Kiyoshi Nemoto, Miyuki Murakami, Kousei Tamiya, Yu Kondo
  • Patent number: 7892175
    Abstract: Within the tip portion of a cylindrical shaped sheath a capacitive ultrasonic transducer which is an array type two-dimensionally arrayed on the outer surface of the cylindrical face is disposed. Capacitive ultrasonic transducer units employ m capacitive ultrasonic transducer elements arrayed in the longitudinal direction of the cylindrical face as a division unit, thereby providing an arrangement wherein the respective capacitive ultrasonic transducer units are readily disposed in the circumferential direction, whereby radial scanning or the like can be performed within a body cavity.
    Type: Grant
    Filed: December 8, 2006
    Date of Patent: February 22, 2011
    Assignee: Olympus Corporation
    Inventors: Katsuhiro Wakabayashi, Hideo Adachi, Yukihiko Sawada, Takuya Imahashi, Masayoshi Omura, Etsuko Omura, legal representative, Akiko Mizunuma, Shuji Otani, Miyuki Murakami, Kiyoshi Nemoto, Kozaburo Suzuki, Naomi Shimoda
  • Patent number: 7883466
    Abstract: An ultrasonic probe apparatus which applies a RF pulse signal with a DC bias signal superimposed thereon to c-MUTs and transmits/receives an ultrasound wave is configured such that a transmission control system includes bias regulators which regulate the voltage value of the DC bias signal, a reception control system has a plurality of different frequency band pass filtering characteristics including at least those for a low pass and high pass and a frequency band pass filtering processing section which can select at least one frequency band pass filtering characteristic from those frequency band pass filtering characteristics. The apparatus controls voltage settings of the bias regulators in conjunction with the selection of frequency band pass filtering characteristics of the frequency band pass filtering processing section.
    Type: Grant
    Filed: December 8, 2006
    Date of Patent: February 8, 2011
    Assignee: Olympus Corporation
    Inventors: Hideo Adachi, Yoshiyjki Okuno, Akiko Mizunuma, Katsuhiro Wakabayashi, Takuya Imahashi, Yukihiko Sawada, Masayoshi Omura, Etsuko Omura, legal representative, Kozaburo Suzuki, Shuji Otani, Naomi Shimoda, Miyuki Murakami, Kiyoshi Nemoto
  • Patent number: 7728490
    Abstract: A capacitive micromachined ultrasonic transducer having an ultrasonic wave transmission/reception surface formed by arranging a plurality of transducer cells each of which includes a membrane having a first electrode and a supporting film for supporting the first electrode, and also includes a second electrode arranged being opposite to the first electrode and being spaced apart from the first electrode at a prescribed interval, wherein: the transducer cells are arranged on the basis of resonant frequencies of the transducer cells.
    Type: Grant
    Filed: November 30, 2006
    Date of Patent: June 1, 2010
    Assignee: Olympus Corporation
    Inventors: Hideo Adachi, Etsuko Omura, Akiko Mizunuma, Katsuhiro Wakabayashi, Takuya Imahashi, Yukihiko Sawada, Shuji Otani, Miyuki Murakami, Kiyoshi Nemoto, Kozaburo Suzuki, Naomi Shimoda
  • Publication number: 20080139946
    Abstract: It becomes possible to obtain high sound pressure in a high frequency domain by a capacitive ultrasonic transducer which comprises a membrane on which one electrode is formed, a cavity constructed in its backface, and a substrate on which these are mounted and supported and on whose surface an electrode is provided, on a surface in an ultrasonic transmission and reception side, characterized in that the membrane comprises tow or more layers, and at least one layer of them comprises a high dielectric constant film.
    Type: Application
    Filed: February 6, 2008
    Publication date: June 12, 2008
    Applicant: OLYMPUS CORPORATION
    Inventors: Hideo Adachi, Yukihiko Sawada, Katsuhiro Wakabayashi, Akiko Mizunuma, Takuya Imahashi, Etsuko Omura, Yoshiyuki Okuno, Shuji Otani, Miyuki Murakami, Kiyoshi Nemoto, Kozaburo Suzuki, Naomi Shimoda
  • Publication number: 20070299345
    Abstract: A capacitive ultrasonic transducer (c-MUT) comprising a silicon substrate and a transducer element which comprises transducer cells, each of which is constituted by a first electrode equipped on the top surface of the silicon substrate, a second electrode placed opposite to the first electrode with a predetermined gap therefrom and a membrane for supporting the second electrode, wherein a trench is equipped between the adjacent transducers and a conductive film is formed in the trench.
    Type: Application
    Filed: October 20, 2005
    Publication date: December 27, 2007
    Inventors: Hideo Adachi, Katsuhiro Wakabayashi, Akiko Mizunuma, Atsushi Osawa, Tatsuo Kaimai, Shinji Yasunaga, Kiyoshi Nemoto, Miyuki Murakami, Kousei Tamiya, Yu Kondo
  • Publication number: 20070164632
    Abstract: It becomes possible to obtain high sound pressure in a high frequency domain by a capacitive ultrasonic transducer which comprises a membrane on which one electrode is formed, a cavity constructed in its backface, and a substrate on which these are mounted and supported and on whose surface an electrode is provided, on a surface in an ultrasonic transmission and reception side, characterized in that the membrane comprises two or more layers, and at least one layer of them comprises a high dielectric constant film.
    Type: Application
    Filed: December 4, 2006
    Publication date: July 19, 2007
    Applicant: OLYMPUS CORPORATION
    Inventors: Hideo Adachi, Yukihiko Sawada, Katsuhiro Wakabayashi, Akiko Mizunuma, Takuya Imahashi, Etsuko Omura, Yoshiyuki Okuno, Shuji Otani, Miyuki Murakami, Kiyoshi Nemoto, Kozaburo Suzuki, Naomi Shimoda
  • Publication number: 20070167814
    Abstract: Within the tip portion of a cylindrical shaped sheath a capacitive ultrasonic transducer which is an array type two-dimensionally arrayed on the outer surface of the cylindrical face is disposed. Capacitive ultrasonic transducer units employ m capacitive ultrasonic transducer elements arrayed in the longitudinal direction of the cylindrical face as a division unit, thereby providing an arrangement wherein the respective capacitive ultrasonic transducer units are readily disposed in the circumferential direction, whereby radial scanning or the like can be performed within a body cavity.
    Type: Application
    Filed: December 8, 2006
    Publication date: July 19, 2007
    Applicant: OLYMPUS CORPORATION
    Inventors: Katsuhiro Wakabayashi, Hideo Adachi, Yukihiko Sawada, Takuya Imahashi, Masayoshi Omura, Etsuko Omura, Akiko Mizunuma, Shuji Otani, Miyuki Murakami, Kiyoshi Nemoto, Kozaburo Suzuki, Naomi Shimoda
  • Publication number: 20070164631
    Abstract: A capacitive micromachined ultrasonic transducer having an ultrasonic wave transmission/reception surface formed by arranging a plurality of transducer cells each of which includes a membrane having a first electrode and a supporting film for supporting the first electrode, and also includes a second electrode arranged being opposite to the first electrode and being spaced apart from the first electrode at a prescribed interval, wherein: the transducer cells are arranged on the basis of resonant frequencies of the transducer cells.
    Type: Application
    Filed: November 30, 2006
    Publication date: July 19, 2007
    Applicant: Olympus Corporation
    Inventors: Hideo Adachi, Etsuko Omura, Akiko Mizunuma, Katsuhiro Wakabayashi, Takuya Imahashi, Yukihiko Sawada, Shuji Otani, Miyuki Murakami, Kiyoshi Nemoto, Kozaburo Suzuki, Naomi Shimoda
  • Publication number: 20070161896
    Abstract: A capacitive micromachined ultrasonic transducer (cMUT) at least including a silicon substrate, a bottom electrode mounted onto the silicon substrate, a upper electrode mounted facing the bottom electrode and apart therefrom by a predetermined cavity, and a membrane supporting the upper electrode, wherein a part of the aforementioned cMUT is charged.
    Type: Application
    Filed: February 5, 2007
    Publication date: July 12, 2007
    Applicant: OLYMPUS CORPORATION
    Inventors: Hideo Adachi, Katsuhiro Wakabayashi, Shinji Yasunaga, Kiyoshi Nemoto, Miyuki Murakami
  • Publication number: 20070083119
    Abstract: An ultrasonic probe apparatus which applies a RF pulse signal with a DC bias signal superimposed thereon to c-MUTs and transmits/receives an ultrasound wave is configured such that a transmission control system includes bias regulators which regulate the voltage value of the DC bias signal, a reception control system has a plurality of different frequency band pass filtering characteristics including at least those for a low pass and high pass and a frequency band pass filtering processing section which can select at least one frequency band pass filtering characteristic from those frequency band pass filtering characteristics. The apparatus controls voltage settings of the bias regulators in conjunction with the selection of frequency band pass filtering characteristics of the frequency band pass filtering processing section.
    Type: Application
    Filed: December 8, 2006
    Publication date: April 12, 2007
    Applicant: OLYMPUS CORPORATION
    Inventors: Hideo Adachi, Yoshiyjki Okuno, Akiko Mizunuma, Katsuhiro Wakabayashi, Takuya Imahashi, Yukihiko Sawada, Masayoshi Omura, Etsuko Omura, Kozaburo Suzuki, Shuji Otani, Naomi Shimoda, Miyuki Murakami, Kiyoshi Nemoto
  • Patent number: 4518328
    Abstract: In a piston for a piston pump including a stopper and a flange fittedly mounted on one end of the piston rod effecting a reciprocating strokes within a cylinder, a reinforcing ring member is fitted between a suction side of a piston packing and a piston member, so that the piston packing can not be forced out when a high pressure is exerted thereon. Also, friction of the piston member relative to the cylinder, which would lead to wear of such members, can be avoided, and in the event that the packing is worn, the airtightness between the piston member and the cylinder can be maintained by the reinforcing ring.
    Type: Grant
    Filed: July 11, 1983
    Date of Patent: May 21, 1985
    Assignee: Kabushiki Kaisha Murayama Seisakusho
    Inventor: Kiyoshi Nemoto
  • Patent number: 4435134
    Abstract: A discharge flow control rate valve for a multiple cylinder type reciprocating pump has a flow rate control valve associated with two cylinders of the pump. The flow control valve has a bypass passage connecting the suction side of the pump with a stepped cylinder chamber provided in the body member of the control valve. A needle valve fitted with a separate valving element is reciprocably disposed in the stepped cylinder chamber and operates to return a part of the fluid in the first cylinder or in the first and second cylinders to the suction side of the pump as a function of the intrusion distance of the valve into the cylinder chamber so as to modify the overall discharge flow rate of the pump.
    Type: Grant
    Filed: June 22, 1982
    Date of Patent: March 6, 1984
    Inventors: Akio Okada, Tokifumi Nakata, Kiyoshi Nemoto
  • Patent number: 4388573
    Abstract: An electric vehicle control device is disclosed which includes a main circuit for supplying power from a d.c. power supply to a driving motor through a chopper, a phase shifter for controlling the conduction ratio of the chopper in such a manner that a current flowing through the driving motor is proportional to an instruction value determined by how much an accelerator pedal is trodden, a circuit for instructing a regenerative braking operation, and a changeover switch for changing over the main circuit between a power running state and a regenerative braking state. The changeover switch is changed over in the regenerative braking state when another power running state in the direction opposite to the current running direction is instructed in a predetermined time after the stop of a power running state where the chopper had a conduction ratio greater than a preset value.
    Type: Grant
    Filed: April 15, 1981
    Date of Patent: June 14, 1983
    Assignee: Hitachi, Ltd.
    Inventors: Michimasa Horiuchi, Masahiko Ibamoto, Kiyoshi Nemoto