Patents by Inventor Mitsuru Ohnuma

Mitsuru Ohnuma 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).

  • Magnetic resonance imaging system
    Patent number: 6236210
    Abstract: A magnetic resonance imaging system includes a lower body which has a flat upper surface, and contains a first magnetic pole, an upper body which has a lower surface disposed in opposed relation to the upper surface of the lower body, and contains a second magnetic pole, a bed disposed adjacent to the lower body, and a pair of support posts which are provided respectively on right and left sides of the lower body, and interconnect the lower body and the upper body. A space, formed between the lower surface of the upper body and the upper surface of the lower body, is open at least toward the bed between the pair of right and left support posts.
    Type: Grant
    Filed: April 10, 2000
    Date of Patent: May 22, 2001
    Assignee: Hitachi Medical Corp.
    Inventors: Isamu Takekoshi, Masahito Saegusa, Mitsuru Ohnuma, Atsushi Ninomiya, Atsushi Katayama, Shigeru Sato, Tsuneo Maeda
  • Magnetic resonance imaging system
    Patent number: 6218837
    Abstract: A magnetic resonance imaging system includes a lower body which has a flat upper surface, and contains a first magnetic pole, an upper body which has a lower surface disposed in opposed relation to the upper surface of the lower body, and contains a second magnetic pole, a bed disposed adjacent to the lower body, and a pair of support posts which are provided respectively on right and left sides of the lower body, and interconnect the lower body and the upper body. A space, formed between the lower surface of the upper body and the upper surface of the lower body, is open at least toward the bed between the pair of right and left support posts.
    Type: Grant
    Filed: October 29, 1999
    Date of Patent: April 17, 2001
    Assignee: Hitachi Medical Corporation
    Inventors: Isamu Takekoshi, Masahito Saegusa, Mitsuru Ohnuma, Atsushi Ninomiya, Atsushi Katayama, Shigeru Sato, Tsuneo Maeda
  • Magnetic resonance imaging system
    Patent number: 6215308
    Abstract: A magnetic resonance imaging system includes a lower body which has a flat upper surface, and contains a first magnetic pole, an upper body which has a lower surface disposed in opposed relation to the upper surface of the lower body, and contains a second magnetic pole, a bed disposed adjacent to the lower body, and a pair of support posts which are provided respectively on right and left sides of the lower body, and interconnect the lower body and the upper body. A space, formed between the lower surface of the upper body and the upper surface of the lower body, is open at least toward the bed between the pair of right and left support posts.
    Type: Grant
    Filed: October 29, 1999
    Date of Patent: April 10, 2001
    Assignee: Hitachi Medical Corp.
    Inventors: Isamu Takekoshi, Masahito Saegusa, Mitsuru Ohnuma, Atsushi Ninomiya, Atsushi Katayama, Shigeru Sato, Tsuneo Maeda
  • Open type magnetic resonance imaging system which allows for easy access to the patient being examined
    Patent number: 6049208
    Abstract: A magnetic resonance imaging system includes a lower body which has a flat upper surface, and contains a first magnetic pole, an upper body which has a lower surface disposed in opposed relation to the upper surface of the lower body, and contains a second magnetic pole, a bed disposed adjacent to the lower body, and a pair of support posts which are provided respectively on right and left sides of the lower body, and interconnect the lower body and the upper body. A space, formed between the lower surface of the upper body and the upper surface of the lower body, is open at least toward the bed between the pair of right and left support posts.
    Type: Grant
    Filed: November 17, 1995
    Date of Patent: April 11, 2000
    Assignee: Hitachi Medical Corporation
    Inventors: Isamu Takekoshi, Masahito Saegusa, Mitsuru Ohnuma, Atsushi Ninomiya, Atsushi Katayama, Shigeru Sato, Tsuneo Maeda
  • X-ray photographing apparatus
    Patent number: 6027247
    Abstract: A X-ray photographing apparatus is suitable for use for a doctor to take X-ray photographing while performing medical treatment, and is capable of positioning a patient at a height at which operations are made ease in accordance with contents of medical treatment.
    Type: Grant
    Filed: March 29, 1996
    Date of Patent: February 22, 2000
    Assignee: Hitachi Medical Corporation
    Inventors: Toshio Tachi, Akio Hara, Seiji Kamimura, Mitsuru Ohnuma, Isamu Takekoshi, Michiaki Motoshima, Hayato Saito
  • Video disk player
    Patent number: D270154
    Type: Grant
    Filed: April 21, 1981
    Date of Patent: August 16, 1983
    Assignee: Hitachi, Ltd.
    Inventors: Mitsuru Ohnuma, Fumio Toyoda, Kazuyuki Tsuburaya
  • Computer display
    Patent number: D278911
    Type: Grant
    Filed: February 25, 1983
    Date of Patent: May 21, 1985
    Assignee: Hitachi, Ltd.
    Inventors: Mitsuru Ohnuma, Kazuyuki Tsuburaya, Masato Tanitsu
  • Central processor unit
    Patent number: D279984
    Type: Grant
    Filed: May 4, 1983
    Date of Patent: August 6, 1985
    Inventors: Mitsuru Ohnuma, Kazuyuki Tsuburaya, Masato Tanitsu, Akihito Nakata, Hidetomo Yoshimura
  • Clinical chemistry analyzer
    Patent number: D332314
    Type: Grant
    Filed: September 19, 1990
    Date of Patent: January 5, 1993
    Assignee: Hitachi, Ltd.
    Inventors: Kazuki Torai, Kazunori Hashimoto, Isamu Takekoshi, Mitsuru Ohnuma, Hiroshi Satake
  • Biochemical analyzer
    Patent number: D339639
    Type: Grant
    Filed: February 22, 1991
    Date of Patent: September 21, 1993
    Assignee: Hitachi, Ltd.
    Inventors: Mitsuru Ohnuma, Kazunori Hashimoto, Hiroshi Mitsumaki, Katsuaki Takahashi
  • Operation station machine for a biochemical analysis
    Patent number: D340770
    Type: Grant
    Filed: February 22, 1991
    Date of Patent: October 26, 1993
    Assignee: Hitachi, Ltd.
    Inventors: Mitsuru Ohnuma, Kazunori Hashimoto, Hiroshi Mitsumaki, Katsuaki Takahashi
  • Mass spectrometer combined with liquid chromatograph
    Patent number: D347396
    Type: Grant
    Filed: February 3, 1993
    Date of Patent: May 31, 1994
    Assignee: Hitachi, Ltd.
    Inventors: Mitsuru Ohnuma, Tomoyuki Miyata, Kazunori Hashimoto, Yoshiaki Kato, Tadao Mimura
  • Controller for semi-conductor processing machine
    Patent number: D349888
    Type: Grant
    Filed: February 8, 1993
    Date of Patent: August 23, 1994
    Assignee: Hitachi, Ltd.
    Inventors: Takashi Yamamoto, Tomoyuki Miyata, Kazunori Hasimoto, Mitsuru Ohnuma, Toshihiko Wada, Seishiro Sato
  • Processing machine for electron beam lithography system
    Patent number: D352910
    Type: Grant
    Filed: February 8, 1993
    Date of Patent: November 29, 1994
    Assignee: Hitachi, Ltd.
    Inventors: Takashi Yamamoto, Tomoyuki Miyata, Kazunori Hasimoto, Mitsuru Ohnuma, Toshihiko Wada, Takashi Yamazaki, Hiroyuki Sakai
  • Processing machine for electron beam lithography system
    Patent number: D352911
    Type: Grant
    Filed: February 8, 1993
    Date of Patent: November 29, 1994
    Assignee: Hitachi, Ltd.
    Inventors: Takashi Yamamoto, Tomoyuki Miyata, Kazunori Hasimoto, Mitsuru Ohnuma, Toshihiko Wada, Seishiro Sato
  • Biochemical analayzer
    Patent number: D380551
    Type: Grant
    Filed: July 27, 1995
    Date of Patent: July 1, 1997
    Assignee: Hitachi, Ltd.
    Inventors: Mitsuru Ohnuma, Atsushi Katayama, Isamu Takekoshi, Isao Shindo, Kahei Shiraishi, Hiromichi Sato
  • Immunity analyzer
    Patent number: D381756
    Type: Grant
    Filed: February 9, 1995
    Date of Patent: July 29, 1997
    Assignee: Hitachi, Ltd.
    Inventors: Mitsuru Ohnuma, Atsushi Ninomiya, Atsushi Katayama, Isamu Takekoshi, Ryuji Tao, Hiroyasu Uchida