Patents by Inventor Hitoshi Isobe

Hitoshi Isobe 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: 11193757
    Abstract: An image measurement apparatus, which functions as a non-contact profile-measuring device, includes: an image sensor as an image pick-up device; a variable focal length lens (liquid lens unit) disposed on an optical axis extending from a workpiece to the image sensor; and a controller (image-pickup lens controller and image measurement processor) configured to control the variable focal length lens and process a detected image by the image sensor. The image measurement apparatus, which also functions as a non-contact displacement-detecting device, includes: an image sensor; a variable focal length lens (liquid lens unit) disposed on an optical axis extending from the workpiece to the image sensor; and a controller (displacement-detection lens controller and profile measurement processor) configured to control the variable focal length lens and a detected image by the image sensor.
    Type: Grant
    Filed: December 17, 2019
    Date of Patent: December 7, 2021
    Assignee: MITUTOYO CORPORATION
    Inventors: Satoru Yoshida, Tatsuya Nagahama, Masafumi Yamanaka, Hitoshi Isobe, Naoto Oita, Koji Kubo, Yuko Shishido, Nobuo Ohba, Takahisa Ootake, Hiroki Matsui, Masanori Arai, Shiro Igasaki, Yuki Kurahashi, Hiroshi Sakai, Yutaka Watanabe
  • Publication number: 20200208965
    Abstract: An image measurement apparatus, which functions as a non-contact profile-measuring device, includes: an image sensor as an image pick-up device; a variable focal length lens (liquid lens unit) disposed on an optical axis extending from a workpiece to the image sensor; and a controller (image-pickup lens controller and image measurement processor) configured to control the variable focal length lens and process a detected image by the image sensor. The image measurement apparatus, which also functions as a non-contact displacement-detecting device, includes: an image sensor; a variable focal length lens (liquid lens unit) disposed on an optical axis extending from the workpiece to the image sensor; and a controller (displacement-detection lens controller and profile measurement processor) configured to control the variable focal length lens and a detected image by the image sensor.
    Type: Application
    Filed: December 17, 2019
    Publication date: July 2, 2020
    Applicant: MITUTOYO CORPORATION
    Inventors: Satoru YOSHIDA, Tatsuya NAGAHAMA, Hitoshi ISOBE, Masafumi YAMANAKA, Naoto OITA, Koji KUBO, Yuko SHISHIDO, Nobuo OHBA, Takahisa OOTAKE, Hiroki MATSUI, Masanori ARAI, Shiro IGASAKI, Yuki KURAHASHI, Hiroshi SAKAI, Yutaka WATANABE
  • Patent number: 7959291
    Abstract: A telecentric lens optical system includes: a front lens group; a rear lens group having a front focal point coinciding with a rear focal point of the front lens unit; and diaphragm mechanisms, each of which is disposed at a position where the rear focal point of the front lens unit and the front focal point of the rear lens unit coincide with each other. One of the front lens group and the rear lens group is provided by a plurality of variable magnification lens groups. The diaphragm mechanisms are provided corresponding to the variable magnification lens groups, respectively. A magnification switching mechanism is provided to selectively move a pair of one of the variable lens groups and one of the corresponding diaphragm mechanisms to be disposed on an optical axis of the other of the front lens group and the rear lens group.
    Type: Grant
    Filed: February 13, 2009
    Date of Patent: June 14, 2011
    Assignee: Mitutoyo Corporation
    Inventors: Hitoshi Isobe, Katsuyoshi Arisawa
  • Publication number: 20090213328
    Abstract: A telecentric lens optical system includes: a front lens group; a rear lens group having a front focal point coinciding with a rear focal point of the front lens unit; and diaphragm mechanisms, each of which is disposed at a position where the rear focal point of the front lens unit and the front focal point of the rear lens unit coincide with each other. One of the front lens group and the rear lens group is provided by a plurality of variable magnification lens groups. The diaphragm mechanisms are provided corresponding to the variable magnification lens groups, respectively. A magnification switching mechanism is provided to selectively move a pair of one of the variable lens groups and one of the corresponding diaphragm mechanisms to be disposed on an optical axis of the other of the front lens group and the rear lens group.
    Type: Application
    Filed: February 13, 2009
    Publication date: August 27, 2009
    Applicant: MITUTOYO CORPORATION
    Inventors: Hitoshi Isobe, Katsuyoshi Arisawa
  • Patent number: 6373626
    Abstract: A bright and dark field switching device, according to the present invention, comprises a glare-proof filter 31 and a condenser lens 32 for a dark field, a guide mechanism 40, and a switching mechanism 60. The glare-proof filter 31 and the condenser lens 32 for a dark field are arranged on both sides with an optical path L of an illuminating optical system interposed therebetween. The guide mechanism 40 holds the glare-proof filter 31 and the condenser lens 32 for a dark field such that they can be moved to the optical path L and can be returned from the optical path L. The switching mechanism 60 moves the glare-proof filter 31 and the condenser lens 32 for a dark field to the optical path L and returns them from the optical path L. Further, the switching mechanism 60 moves the glare-proof filter 31 together so as to position the same on the optical path L only when returning the condenser lens 32 for a dark field from the optical path L.
    Type: Grant
    Filed: November 9, 2000
    Date of Patent: April 16, 2002
    Assignee: Mitutoyo Corporation
    Inventors: Shoichi Tanaka, Hidekazu Sano, Hitoshi Isobe
  • Patent number: 6339733
    Abstract: It is provided an automatic MDF control system comprising: a plurality of matrix boards provided with openings in locations where a plurality of first wires and second wires cross without electrical connections; a robot which inserts electrically conductive connecting pins into the openings and connects the first wires with the second wires where the pins are inserted; a path data conversion unit converting connection requests from an operating terminal into path data having a plurality of addresses of the openings; a robot command conversion unit receiving the path data and converting the path data into robot commands for controlling activity of the robot as a distance moved by the robot moving between the plurality of addresses being reduced by a selected sequence of the converted path data; and a robot control unit controlling the activity of the robot based on the robot commands.
    Type: Grant
    Filed: October 13, 1998
    Date of Patent: January 15, 2002
    Assignee: Fujitsu Limited
    Inventors: Takashi Mizutani, Masaaki Muraai, Hitoshi Isobe, Atsuhiro Makino, Masahiro Ito
  • Patent number: 6295483
    Abstract: One matrix board aggregate accommodating two matrix boards is made one unit of a switch. Three of the matrix board aggregates are vertically located, groups of such three vertically-located matrix board aggregates are laterally located and robots are provided between the matrix board aggregates. By providing a number of robots, the switch operation speeds up. The robots are controlled by a control circuit/power supply RMC/POW. I/O cables for connecting an MDF apparatus to an exchange or to lines are provided at the back. In a three-stage switching configuration, by devising the location of primary, secondary and tertiary switches, interconnection between matrix board aggregates can be made using BWBs made of a printed wiring board.
    Type: Grant
    Filed: February 5, 1999
    Date of Patent: September 25, 2001
    Assignee: Fujitsu Limited
    Inventors: Hitoshi Isobe, Masahiro Ito, Takashi Murakami
  • Patent number: 6138345
    Abstract: A matrix-switch-board unit has two wiring-pattern arrays which are respectively formed in opposite sides of the unit so as to be electrically isolated from and to cross each other, respective through holes extending between and through the crossing portions of the wiring pattern arrays on the opposite sides of the unit. A connection pin inserting and extracting device automatically and selectively inserts a connection pin into a selected one of the through holes for interconnecting the corresponding opposed, crossing pattern portions and extracts a connection pin from a corresponding one of the through holes for disconnecting same. Pivotally mounted toggle arms of the device have respective ends with laterally extending hook portions in opposed relationship and are rotatable in a first sense to engage a pin between the hook portions and in an opposite sense to release a connection pin engaged thereby.
    Type: Grant
    Filed: February 18, 1998
    Date of Patent: October 31, 2000
    Assignee: Fujitsu Limited
    Inventors: Toshihiro Suzuki, Naoto Kaneko, Eiichi Kakihara, Koichi Shimamura, Yasunori Hachiyama, Hirofumi Oosawa, Hitoshi Isobe
  • Patent number: 5790651
    Abstract: Automatic distribution equipment for connecting and disconnecting lines includes a frame body, a plurality of matrix-switch-board units arranged in the frame body in a stack formation, and a robot provided in a side of the frame body. Each of the matrix-switch-board units has two wiring-pattern arrays which are respectively formed in opposite sides of each of the units so as to be electrically isolated from each other and to cross each other, wherein when a connection pin is inserted into one of through holes formed at cross points of the two wiring-pattern arrays, respective wiring patterns of the two wiring-pattern arrays are connected to each other. The robot moves between two of the matrix-switch-board units, and inserts-and-extracts the connection pin into-and-from a designated through hole to connect-and-disconnect designated lines.
    Type: Grant
    Filed: June 12, 1996
    Date of Patent: August 4, 1998
    Assignee: Fujitsu Limited
    Inventors: Toshihiro Suzuki, Naoto Kaneko, Eiichi Kakihara, Koichi Shimamura, Yasunori Hachiyama, Hirofumi Oosawa, Hitoshi Isobe
  • Patent number: D666513
    Type: Grant
    Filed: January 31, 2011
    Date of Patent: September 4, 2012
    Assignee: Mitutoyo Corporation
    Inventors: Sadayuki Matsumiya, Yu Sugai, Shigeru Ohtani, Shinichiro Aoyagi, Hitoshi Isobe, Hirohisa Handa
  • Patent number: D744573
    Type: Grant
    Filed: September 8, 2014
    Date of Patent: December 1, 2015
    Assignee: MITUTOYO CORPORATION
    Inventors: Sadayuki Matsumiya, Yoshiro Asano, Shigeru Ohtani, Yu Sugai, Shinichiro Aoyagi, Hitoshi Isobe, Takeshi Kawabata