Patents by Inventor Kunio Kazami

Kunio Kazami 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).

  • Cryogenic refrigerator and biomagnetic measurement apparatus
    Patent number: 11828522
    Abstract: A cryogenic refrigerator includes a cooling unit and a magnetic shielding unit. The cooling unit is configured to cool a refrigerant. The magnetic shielding unit covers around the cooling unit.
    Type: Grant
    Filed: March 22, 2021
    Date of Patent: November 28, 2023
    Assignee: RICOH COMPANY, LTD.
    Inventors: Jun Kondo, Kunio Kazami, Hiroshi Kubota, Shunichi Matsumoto, Takahiro Umeno, Syoji Takami, Takuji Ito
  • HELIUM CIRCULATION SYSTEM, CRYOGENIC REFRIGERATION METHOD, AND BIOMAGNETISM MEASURING APPARATUS
    Publication number: 20210293475
    Abstract: A helium circulation system includes a refrigerator configured to cool a gas refrigerant into a liquid refrigerant; a first path configured to feed the liquid refrigerant from the refrigerator to a Dewar; a second path configured to feed the gas refrigerant from the Dewar to a vaporized gas collector via the refrigerator; a third path configured to feed the gas refrigerant from the vaporized gas collector to the refrigerator; a fourth path configured to feed the gas refrigerant from the Dewar to the vaporized gas collector without via the refrigerator; and a control unit configured to feed the liquid refrigerant through the first path while feeding the gas refrigerant through the third path when the refrigerator is driven, and feed the gas refrigerant through the second path while feeding the gas refrigerant the fourth path, when the refrigerator is stopped.
    Type: Application
    Filed: March 22, 2021
    Publication date: September 23, 2021
    Applicants: Ricoh Company, Ltd., Taiyo Nippon Sanso Corporation
    Inventors: Shunichi MATSUMOTO, Kunio KAZAMI, Jun KONDO, Hiroshi KUBOTA, Takahiro UMENO, Shoji TAKAMI, Kenji IWAMOTO, Yujiro HOTEI
  • CRYOGENIC REFRIGERATOR AND BIOMAGNETIC MEASUREMENT APPARATUS
    Publication number: 20210293467
    Abstract: A cryogenic refrigerator includes a cooling unit and a magnetic shielding unit. The cooling unit is configured to cool a refrigerant. The magnetic shielding unit covers around. the cooling unit.
    Type: Application
    Filed: March 22, 2021
    Publication date: September 23, 2021
    Applicants: Ricoh Company, Ltd., Taiyo Nippon Sanso Corporation
    Inventors: Jun KONDO, Kunio KAZAMI, Hiroshi KUBOTA, Shunichi MATSUMOTO, Takahiro UMENO, Syoji TAKAMI, Takuji ITO
  • Ultracryostat and frigidity supplying apparatus
    Publication number: 20060225437
    Abstract: A ultracryostat is provided with a frigidity supplying member to supply frigidity to the ultracryostat which uses cryogen such as liquid helium, wherein the frigidity supplying member comprises a heat pipe and one end of the heat pipe is connected to a frigidity generating member of a cryocooler and the other end of the heat pipe is connected to a thermal anchor of a cryostat.
    Type: Application
    Filed: May 26, 2005
    Publication date: October 12, 2006
    Applicant: YOKOGAWA ELECTRIC CORPORATION
    Inventor: Kunio Kazami
  • Revolution counter using a magnetic bubble device for multi-turn absolute encoder
    Patent number: 4990909
    Abstract: A multi-turn absolute encoder comprising a shaft angle encoder for measuring the turning angle of a rotating shaft, and a turn detector for detecting the number of turns of the rotating shaft, wherein the turn detector uses a magnetic bubble element for sequentially transferring magnetic bubbles in a pattern in accordance with a magnetic field generated by a permanent magnet turned by the shaft, and a detector to detect the number of turns of the shaft from the positions of the magnetic bubbles which are transferred in the pattern.
    Type: Grant
    Filed: September 21, 1989
    Date of Patent: February 5, 1991
    Assignee: Yokogawa Electric Corporation
    Inventors: Toshitugu Ueda, Fusao Kohsaka, Toshi Iino, Kunio Kazami, Hiroshi Nakayama, Yoshiaki Kudou, Yasuhiro Sakamaki