Patents by Inventor Kei Shibayama

Kei Shibayama 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: 11946858
    Abstract: The purpose of the present invention is to allow a clean airflow around a substrate to reliably move downward of the substrate in an examination device in which clean air is supplied to an inspection chamber. This examination device is provided with a rectifying plate (see FIG. 4A) which covers a part of the upper surface of a stage for mounting a substrate, and is disposed between a gas supply unit and the stage to block an airflow toward the substrate.
    Type: Grant
    Filed: October 7, 2019
    Date of Patent: April 2, 2024
    Assignee: HITACHI HIGH-TECH CORPORATION
    Inventors: Yoshihiro Satou, Toshio Masuda, Hitoshi Matsuno, Kei Shibayama, Osamu Yoshimura, Yuichirou Iijima
  • Patent number: 11929231
    Abstract: A charged particle beam device suppresses sample deformation caused by placing a sample on a suctioning surface of an electrostatic chuck mechanism, the sample having a temperature different from the suctioning surface. The charged particle beam device includes the electrostatic chuck mechanism; a stage (200) which moves a sample, which is to be irradiated with a charged particle beam, relative to an irradiation position of the charged particle beam; an insulating body (203) which is disposed on the stage and constitutes a dielectric layer of the electrostatic chuck; a first support member (402) which supports the insulating body on the stage; a ring-shaped electrode (400) which encloses the surroundings of the sample and is installed on the insulating body in a contactless manner, and to which a predetermined voltage is applied; and a second support member (405) which supports the ring-shaped electrode.
    Type: Grant
    Filed: April 20, 2022
    Date of Patent: March 12, 2024
    Assignee: Hitachi High-Tech Corporation
    Inventors: Akito Tanokuchi, Seiichiro Kanno, Kei Shibayama
  • Publication number: 20220246387
    Abstract: A charged particle beam device suppresses sample deformation caused by placing a sample on a suctioning surface of an electrostatic chuck mechanism, the sample having a temperature different from the suctioning surface. The charged particle beam device includes the electrostatic chuck mechanism; a stage (200) which moves a sample, which is to be irradiated with a charged particle beam, relative to an irradiation position of the charged particle beam; an insulating body (203) which is disposed on the stage and constitutes a dielectric layer of the electrostatic chuck; a first support member (402) which supports the insulating body on the stage; a ring-shaped electrode (400) which encloses the surroundings of the sample and is installed on the insulating body in a contactless manner, and to which a predetermined voltage is applied; and a second support member (405) which supports the ring-shaped electrode.
    Type: Application
    Filed: April 20, 2022
    Publication date: August 4, 2022
    Inventors: Akito TANOKUCHI, Seiichiro KANNO, Kei SHIBAYAMA
  • Patent number: 11335533
    Abstract: The purpose of the present invention is to provide a charged particle beam device which suppresses sample deformation caused by placing a sample on a suctioning surface of an electrostatic chuck mechanism, the sample having a temperature different from the suctioning surface.
    Type: Grant
    Filed: February 24, 2017
    Date of Patent: May 17, 2022
    Assignee: Hitachi High-Tech Corporation
    Inventors: Akito Tanokuchi, Seiichiro Kanno, Kei Shibayama
  • Publication number: 20210404946
    Abstract: The purpose of the present invention is to allow a clean airflow around a substrate to reliably move downward of the substrate in an examination device in which clean air is supplied to an inspection chamber. This examination device is provided with a rectifying plate (see FIG. 4A) which covers a part of the upper surface of a stage for mounting a substrate, and is disposed between a gas supply unit and the stage to block an airflow toward the substrate.
    Type: Application
    Filed: October 7, 2019
    Publication date: December 30, 2021
    Inventors: Yoshihiro SATOU, Toshio MASUDA, Hitoshi MATSUNO, Kei SHIBAYAMA, Osamu YOSHIMURA, Yuichirou IIJIMA
  • Publication number: 20210134555
    Abstract: The purpose of the present invention is to provide a charged particle beam device which suppresses sample deformation caused by placing a sample on a suctioning surface of an electrostatic chuck mechanism, the sample having a temperature different from the suctioning surface.
    Type: Application
    Filed: February 24, 2017
    Publication date: May 6, 2021
    Inventors: Akito TANOKUCHI, Seiichiro KANNO, Kei SHIBAYAMA
  • Patent number: 7389707
    Abstract: A starter for cranking an internal combustion engine includes an electric motor, an output shaft, and a one-way clutch for transmitting a rotational torque of the electric motor to the output shaft. The one-way clutch is composed of a clutch-outer driven by the electric motor, a clutch-inner spline-coupled to the output shaft, and rollers disposed between the clutch-outer and the clutch-inner. A portion of the clutch-inner is utilized as an inner ring of a ball bearing rotatably supporting the clutch-inner. A ball-groove rotatably supporting the bearing balls and retaining lubricant therein is formed on the outer circumference of the clutch-inner. In this manner, an original inner ring of the ball bearing can be eliminated without adversely affecting the lubricating function.
    Type: Grant
    Filed: September 21, 2004
    Date of Patent: June 24, 2008
    Assignee: Denso Corporation
    Inventors: Kazuaki Murase, Youichi Hasegawa, Kei Shibayama
  • Patent number: 7305899
    Abstract: In a starter, a one-way clutch that transmits rotation of a motor to an output shaft has a clutch inner portion. The clutch inner portion has female helical splines in an inner periphery. Also, the clutch inner portion has a stopper at a front end of the female helical splines on the side opposite to the motor. The female helical splines engage with male helical splines formed on a rear end of the output shaft so that the output shaft is slidable in an axial direction. When the male helical splines of the output shaft are brought into contact with the stopper, relative rotation of the helical splines is restricted, thereby to stop the axial movement of the output shaft.
    Type: Grant
    Filed: March 9, 2004
    Date of Patent: December 11, 2007
    Assignee: Denso Corporation
    Inventors: Sadayoshi Kajino, Youichi Hasegawa, Kei Shibayama
  • Patent number: 7194925
    Abstract: A shock absorbing device 8 includes a transmitting section 81, first friction plates 82, second friction plates 83, and a dish spring 84. The transmitting section 81 is engaged with the inner cylindrical portion of the second friction plates 83 and also engaged with an outer cylindrical surface of an internal gear 42. The first friction plates 82 are stationarily fixed to an end portion 102a of a central housing. The second friction plates 83 are brought into frictional engagement with the first friction plates 82 under a resilient force applied from the dish spring 84. The first friction plates 82 and the second friction plates 83 are alternately laminated.
    Type: Grant
    Filed: July 22, 2003
    Date of Patent: March 27, 2007
    Assignees: Denso Corporation, Sawafuji Electric Co., Ltd.
    Inventors: Sadayoshi Kajino, Kei Shibayama, Syuichi Aoki
  • Publication number: 20050081659
    Abstract: A starter for cranking an internal combustion engine includes an electric motor, an output shaft, and a one-way clutch for transmitting a rotational torque of the electric motor to the output shaft. The one-way clutch is composed of a clutch-outer driven by the electric motor, a clutch-inner spline-coupled to the output shaft, and rollers disposed between the clutch-outer and the clutch-inner. A portion of the clutch-inner is utilized as an inner ring of a ball bearing rotatably supporting the clutch-inner. A ball-groove rotatably supporting the bearing balls and retaining lubricant therein is formed on the outer circumference of the clutch-inner. In this manner, an original inner ring of the ball bearing can be eliminated without adversely affecting the lubricating function.
    Type: Application
    Filed: September 21, 2004
    Publication date: April 21, 2005
    Applicant: DENSO CORPORATION
    Inventors: Kazuaki Murase, Youichi Hasegawa, Kei Shibayama
  • Publication number: 20040177710
    Abstract: In a starter, a one-way clutch that transmits rotation of a motor to an output shaft has a clutch inner portion. The clutch inner portion has female helical splines in an inner periphery. Also, the clutch inner portion has a stopper at a front end of the female helical splines on the side opposite to the motor. The female helical splines engage with male helical splines formed on a rear end of the output shaft so that the output shaft is slidable in an axial direction. When the male helical splines of the output shaft are brought into contact with the stopper, relative rotation of the helical splines is restricted, thereby to stop the axial movement of the output shaft. Thereafter, the output shaft will not receive a thrust force. Accordingly, it is less likely that a front bearing supporting the output shaft and a front housing will receive a large load.
    Type: Application
    Filed: March 9, 2004
    Publication date: September 16, 2004
    Applicant: DENSO CORPORATION
    Inventors: Sadayoshi Kajino, Youichi Hasegawa, Kei Shibayama
  • Publication number: 20040123686
    Abstract: A shock absorbing device 8 includes a transmitting section 81, first friction plates 82, second friction plates 83, and a dish spring 84. The transmitting section 81 is engaged with the inner cylindrical portion of the second friction plates 83 and also engaged with an outer cylindrical surface of an internal gear 42. The first friction plates 82 are stationarily fixed to an end portion 102a of a central housing. The second friction plates 83 are brought into frictional engagement with the first friction plates 82 under a resilient force applied from the dish spring 84. The first friction plates 82 and the second friction plates 83 are alternately laminated.
    Type: Application
    Filed: July 22, 2003
    Publication date: July 1, 2004
    Applicants: DENSO CORPORATION, SAWAFUJI ELECTRIC CO., LTD.
    Inventors: Sadayoshi Kajino, Kei Shibayama, Syuichi Aoki