Patents by Inventor Nobuaki Akui

Nobuaki Akui 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: 5579772
    Abstract: A surgical microscope system having a stereoscopic optical system, an imaging unit, and a monitor display. The stereoscopic optical system has two optical paths and forms a 3D image of an object. The imaging unit forms two images of the object from two light beams focused in the optical paths. The monitor display displays the images of the object which the imaging unit has formed. The surgical microscope system further comprises an observation-light receiving section located in the optical paths for determining an observation field, an observation-light emitting section located in the monitor display for applying the images formed by the imaging unit, and reflectors arranged between the observation-light receiving section and the observation-light emitting section. The observation-light receiving and the observation-light emitting sections are located close to each other and a barrel holds the sections together.
    Type: Grant
    Filed: June 13, 1994
    Date of Patent: December 3, 1996
    Assignee: Olympus Optical Co., Ltd.
    Inventors: Masahiko Kinukawa, Masami Hamada, Hiroshi Fujiwara, Takashi Fukaya, Masanori Kaneda, Toyoharu Hanzawa, Susumu Takahashi, Nobuaki Akui, Katsuyuki Saito, Yoshinao Oaki
  • Patent number: 5577991
    Abstract: A three-dimensional vision endoscopic apparatus according to the present invention comprises a pair of optical systems for transmitting an image of a subject as two subject images having a parallax between them, a pair of imaging devices for picking up subject images transmitted by the optical systems, at least one visual field mask, a display unit for displaying the two subject images alternately or concurrently, an adjusting mechanism for adjusting the position of one or both of the imaging devices so that the display images will become consistent on the screen of the display unit, and an adjusting mechanism for adjusting the relative position of the visual field mask.
    Type: Grant
    Filed: July 7, 1995
    Date of Patent: November 26, 1996
    Assignee: Olympus Optical Co., Ltd.
    Inventors: Nobuaki Akui, Satoshi Honma, Iwao Kanamori, Susumu Takahashi, Toyoharu Hanzawa, Takashi Fukaya, Hitoshi Karasawa, Tetsumaru Kubota, Toshihiko Hashiguchi, Akihiko Mochida, Akihiro Taguchi, Akio Nakada, Kenji Yoshino, Atsushi Kidawara
  • Patent number: 5259365
    Abstract: An endoscope examination apparatus includes a bed on which a subject lies, a device separately positioned from the bed and used for an endoscope examination, a control device provided in the bed for controlling the device and a connecting device extended from the bed and connected to the device for operatively connecting the device and the control device.
    Type: Grant
    Filed: September 9, 1992
    Date of Patent: November 9, 1993
    Assignee: Olympus Optical Co., Ltd.
    Inventors: Toshiaki Nishikori, Yukio Nakajima, Masahiro Kawashima, Stuart M. Greengrass, Christopher Parker, Shuichi Takayama, Kenichiro Sanagai, Shinichi Nishigaki, Nobuaki Akui, Tatsuya Yamaguchi, Takeaki Nakamura, Masaaki Hayashi, Akira Takano
  • Patent number: 4756303
    Abstract: In an insertion section of an endoscope according to the present invention, a plurality of flexible segment tubes, each having a predetermined length and a predetermined inside diameter, constitute necessary ducts for the endoscope, individually. The ducts include an image guide duct, light guide duct, instrument channel duct, and air/water channel duct. The flexible segment tubes are fixed in a housing tube. In manufacturing the insertion section, optical fibers and the like are inserted into the flexible tubes, fixed in the housing tube. Once the housing tube is molded, the respective sectional configurations of the flexible tubes are kept uniform, even though the housing tube may contract. Thus, the optical fibers and other elements can be inserted easily into the ducts.
    Type: Grant
    Filed: September 26, 1986
    Date of Patent: July 12, 1988
    Assignee: Olympus Optical Co., Ltd.
    Inventors: Masahiro Kawashima, Koji Kambara, Tsuruo Hatori, Nobuaki Akui, Nobuhiko Washizuka, Kunio Ohno, Yoshio Tashiro
  • Patent number: 4732139
    Abstract: An endoscope includes an operation section and an insertion section extending from the operation section. The insertion section has a plurality of insertion holes extending in its axial direction. The insertion holes have outlet openings open to the distal end portion of the insertion section and inlet openings open to the proximal end portion of the insertion section. One of the inlet openings is open to the proximal end face of the insertion section, and the remaining openings are open to the outer periphery of the insertion section. An image guide and a light guide inserted into the insertion holes extend from the inlet openings located at the outer periphery of the insertion section toward the outside thereof.
    Type: Grant
    Filed: August 29, 1986
    Date of Patent: March 22, 1988
    Assignee: Olympus Optical Co., Ltd.
    Inventors: Masahiro Kawashima, Kunio Ohno, Koji Kambara, Nobuaki Akui, Yoshio Tashiro
  • Patent number: 4715360
    Abstract: An endoscope forceps stopcock has a cylindrical body. The body has a lower engagement section detachably fitted to an insertion mouthpiece of an endoscope, and an upper engagement section to which a cap is detachably fitted. The body and cap are connected to each other by a coupling member. A valve section is formed in the body between the engagement sections to close an insertion channel and provided with a pushing section and an insertion section allowing for the insertion of medical operation instruments. The pushing section presses the cap in accordance with the extent of the deformation of the valve section when the pressure in the insertion channel is increased, thereby holding the cap in cooperation with the upper engagement section.
    Type: Grant
    Filed: January 7, 1987
    Date of Patent: December 29, 1987
    Assignee: Olympus Optical Co., Ltd.
    Inventors: Nobuaki Akui, Yasuhiro Ueda, Akira Suzuki
  • Patent number: 4653477
    Abstract: An endoscope forceps stopcock has a cylindrical body. The body has a lower engagement section detachably fitted to an insertion mouthpiece of an endoscope, and an upper engagement section to which a cap is detachably fitted. The body and cap are connected to each other by a coupling member. A valve section is formed in the body between the engagement sections to close an insertion channel and provided with a pushing section and an insertion section allowing for the insertion of medical operation instruments. The pushing section presses the cap in accordance with the extent of the deformation of the valve section when the pressure in the insertion channel is increased, thereby holding the cap in cooperation with the upper engagement section.
    Type: Grant
    Filed: September 6, 1985
    Date of Patent: March 31, 1987
    Assignee: Olympus Optical Co., Ltd.
    Inventors: Nobuaki Akui, Yasuhiro Ueda, Akira Suzuki
  • Patent number: D326714
    Type: Grant
    Filed: December 15, 1989
    Date of Patent: June 2, 1992
    Assignee: Olympus Optical Co., Ltd.
    Inventors: Nobuyuki Funakoshi, Tsuruo Hatori, Nobuaki Akui, Tohru Shimizu, Masahiro Kawashima