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).
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Patent number: 11693480Abstract: 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: GrantFiled: February 26, 2019Date of Patent: July 4, 2023Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATIONInventors: Tetsufumi Shoji, Toshiki Wada
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Patent number: 11163366Abstract: 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: GrantFiled: February 26, 2019Date of Patent: November 2, 2021Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATIONInventors: Tetsufumi Shoji, Toshiki Wada
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Publication number: 20210048886Abstract: 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: ApplicationFiled: February 26, 2019Publication date: February 18, 2021Inventors: Tetsufumi Shoji, Toshiki Wada
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Publication number: 20210018984Abstract: 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: ApplicationFiled: February 26, 2019Publication date: January 21, 2021Inventors: Tetsufumi Shoji, Toshiki Wada
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Patent number: 10864552Abstract: 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: GrantFiled: December 22, 2016Date of Patent: December 15, 2020Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATIONInventors: Tetsufumi Shoji, Katsuyuki Ochiai, Hiroaki Gomi
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Publication number: 20180369865Abstract: 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: ApplicationFiled: December 22, 2016Publication date: December 27, 2018Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATIONInventors: Tetsufumi SHOJI, Katsuyuki OCHIAI, Hiroaki GOMI
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Patent number: 7076135Abstract: 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: GrantFiled: September 18, 2003Date of Patent: July 11, 2006Assignee: Nippon Telegraph and Telephone CorporationInventors: Koji Yamada, Tai Tsuchizawa, Shingo Uchiyama, Tetsufumi Shoji, Jyun-ichi Takahashi, Toshifumi Watanabe, Emi Tamechika, Hirofumi Morita
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Publication number: 20040057667Abstract: 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: ApplicationFiled: September 18, 2003Publication date: March 25, 2004Inventors: Koji Yamada, Tai Tsuchizawa, Shingo Uchiyama, Tetsufumi Shoji, Jyun-Ichi Takahashi, Toshifumi Watanabe, Emi Tamechika, Hirofumi Morita
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Patent number: 5784515Abstract: 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: GrantFiled: January 22, 1996Date of Patent: July 21, 1998Assignee: Nippon Telegraph and Telephone CorporationInventors: Naoyuki Tamaru, Yasuhide Nishida, Tsuneo Kanai, Kazumasa Kaneko, Joji Yamaguchi, Tetsufumi Shoji