Patents by Inventor Tetsufumi Shoji

Tetsufumi Shoji 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: 11693480
    Abstract: A haptic system includes a haptic device and a control device. A sensor of the haptic device detects contact of a finger of a user who grips a casing, a determination unit of the control device determines whether sensor information on a contact position of the finger detected by the sensor of the haptic device matches preset reference position information, and an instruction unit sends a notification unit a notification instruction in at least one of cases where the sensor information does not match the reference position information and where the sensor information matches the reference position information. On accepting the notification instruction, the notification unit of the haptic device notifies the user of an indication indicating that the contact position of the finger is shifted or an indication indicating that the contact position of the finger matches the reference position.
    Type: Grant
    Filed: February 26, 2019
    Date of Patent: July 4, 2023
    Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Tetsufumi Shoji, Toshiki Wada
  • Patent number: 11163366
    Abstract: A sensor detects contact of a finger of a user who grips a casing. A determination unit determines whether sensor information on a contact position of the finger detected by the sensor matches preset reference position information. A notification unit notifies the user of at least one of an indication indicating that the contact position of the finger is shifted from a reference position and an indication indicating that the contact position of the finger matches the reference position when the sensor information matches the reference position information. A tactile stimulus generation unit 105 provides a tactile stimulus for the user gripping the casing.
    Type: Grant
    Filed: February 26, 2019
    Date of Patent: November 2, 2021
    Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Tetsufumi Shoji, Toshiki Wada
  • Publication number: 20210048886
    Abstract: A haptic system includes a haptic device and a control device. A sensor of the haptic device detects contact of a finger of a user who grips a casing, a determination unit of the control device determines whether sensor information on a contact position of the finger detected by the sensor of the haptic device matches preset reference position information, and an instruction unit sends a notification unit a notification instruction in at least one of cases where the sensor information does not match the reference position information and where the sensor information matches the reference position information. On accepting the notification instruction, the notification unit of the haptic device notifies the user of an indication indicating that the contact position of the finger is shifted or an indication indicating that the contact position of the finger matches the reference position.
    Type: Application
    Filed: February 26, 2019
    Publication date: February 18, 2021
    Inventors: Tetsufumi Shoji, Toshiki Wada
  • Publication number: 20210018984
    Abstract: A sensor detects contact of a finger of a user who grips a casing. A determination unit determines whether sensor information on a contact position of the finger detected by the sensor matches preset reference position information. A notification unit notifies the user of at least one of an indication indicating that the contact position of the finger is shifted from a reference position and an indication indicating that the contact position of the finger matches the reference position when the sensor information matches the reference position information. A tactile stimulus generation unit 105 provides a tactile stimulus for the user gripping the casing.
    Type: Application
    Filed: February 26, 2019
    Publication date: January 21, 2021
    Inventors: Tetsufumi Shoji, Toshiki Wada
  • Patent number: 10864552
    Abstract: A pseudo force sense generation apparatus including a base, and first to nth vibrators that make asymmetrical motions where relative positions of the vibrators to the base are fixed is provided. An ith vibrator included in the first to the nth vibrators is each capable of presenting pseudo force sense in an ith straight-line direction. The pseudo force sense generation apparatus makes a rotary motion centered at a neighborhood of a center of gravity of a system by driving of the vibrators.
    Type: Grant
    Filed: December 22, 2016
    Date of Patent: December 15, 2020
    Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Tetsufumi Shoji, Katsuyuki Ochiai, Hiroaki Gomi
  • Publication number: 20180369865
    Abstract: A pseudo force sense generation apparatus including a base, and first to nth vibrators that make asymmetrical motions where relative positions of the vibrators to the base are fixedis provided. An ith vibrator included in the first to the nth vibrators is each capable of presenting pseudo force sense in an ith straight-line direction. The pseudo force sense generation apparatus makes a rotary motion centered at a neighborhood of a center of gravity of a system by driving of the vibrators.
    Type: Application
    Filed: December 22, 2016
    Publication date: December 27, 2018
    Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Tetsufumi SHOJI, Katsuyuki OCHIAI, Hiroaki GOMI
  • Patent number: 7076135
    Abstract: An optical module includes an under cladding, a first core, a second core, and an over cladding. The under cladding has a flat shape as a whole. The first core has a quadrangular cross section and is placed on the under cladding. The second core is placed on a terminal end portion of the first core. The over cladding is placed in a region including the terminal end portion of the first core and the second core placed on the terminal end portion of the first core. The under cladding and the first core placed thereon constitute a first optical waveguide. The under cladding, the terminal end portion of the first core placed on the under cladding, the second core placed thereon, and the over cladding placed on and around the second core constitute a mode field size conversion portion. The under cladding, the second core placed on the under cladding, and the over cladding placed on and around the second core constitute a second optical waveguide. The first core is made of silicon.
    Type: Grant
    Filed: September 18, 2003
    Date of Patent: July 11, 2006
    Assignee: Nippon Telegraph and Telephone Corporation
    Inventors: Koji Yamada, Tai Tsuchizawa, Shingo Uchiyama, Tetsufumi Shoji, Jyun-ichi Takahashi, Toshifumi Watanabe, Emi Tamechika, Hirofumi Morita
  • Publication number: 20040057667
    Abstract: An optical module includes an under cladding, a first core, a second core, and an over cladding. The under cladding has a flat shape as a whole. The first core has a quadrangular cross section and is placed on the under cladding. The second core is placed on a terminal end portion of the first core. The over cladding is placed in a region including the terminal end portion of the first core and the second core placed on the terminal end portion of the first core. The under cladding and the first core placed thereon constitute a first optical waveguide. The under cladding, the terminal end portion of the first core placed on the under cladding, the second core placed thereon, and the over cladding placed on and around the second core constitute a mode field size conversion portion. The under cladding, the second core placed on the under cladding, and the over cladding placed on and around the second core constitute a second optical waveguide. The first core is made of silicon.
    Type: Application
    Filed: September 18, 2003
    Publication date: March 25, 2004
    Inventors: Koji Yamada, Tai Tsuchizawa, Shingo Uchiyama, Tetsufumi Shoji, Jyun-Ichi Takahashi, Toshifumi Watanabe, Emi Tamechika, Hirofumi Morita
  • Patent number: 5784515
    Abstract: An optical fiber cross connection apparatus is provided for connecting and disconnecting input optical fibers to desired output optical fibers, each of the input optical fibers being equipped with a plug on a tip thereof.
    Type: Grant
    Filed: January 22, 1996
    Date of Patent: July 21, 1998
    Assignee: Nippon Telegraph and Telephone Corporation
    Inventors: Naoyuki Tamaru, Yasuhide Nishida, Tsuneo Kanai, Kazumasa Kaneko, Joji Yamaguchi, Tetsufumi Shoji