Patents by Inventor Tatsuya Ohtaka
Tatsuya Ohtaka 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: 8299807Abstract: A foreign objection detection sensor has a lengthy sensor part having a sensor electrode having a first sensor electrode which detects a proximity of a foreign object and a second sensor electrode which detects a contact of the foreign object, a sensor terminal part provided at one end of the sensor part, a leading wire pulled out from the sensor terminal part, the leading wire being electrically connected to the sensor electrode at the sensor terminal part to provide a proximity detecting function for detecting the proximity of the foreign object to the sensor part and a contact detecting function for detecting the contact of the foreign object to the sensor part. The sensor terminal part has a support member which supports a detection circuit unit electrically connected to the sensor electrode to carry out the proximity detecting function and the contact detecting function together with the sensor electrode. The detection circuit unit is disposed in the support member.Type: GrantFiled: February 24, 2010Date of Patent: October 30, 2012Assignees: ASMO Co., Ltd., Hitachi Cable, Ltd.Inventors: Ryousuke Sakamaki, Akihiro Tanba, Takashi Aoyama, Akio Hattori, Teruji Sato, Tatsuya Ohtaka
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Publication number: 20100219844Abstract: A foreign objection detection sensor has a lengthy sensor part having a sensor electrode having a first sensor electrode which detects a proximity of a foreign object and a second sensor electrode which detects a contact of the foreign object, a sensor terminal part provided at one end of the sensor part, a leading wire pulled out from the sensor terminal part, the leading wire being electrically connected to the sensor electrode at the sensor terminal part to provide a proximity detecting function for detecting the proximity of the foreign object to the sensor part and a contact detecting function for detecting the contact of the foreign object to the sensor part. The sensor terminal part has a support member which supports a detection circuit unit electrically connected to the sensor electrode to carry out the proximity detecting function and the contact detecting function together with the sensor electrode. The detection circuit unit is disposed in the support member.Type: ApplicationFiled: February 24, 2010Publication date: September 2, 2010Applicants: ASMO CO., LTD., HITACHI CABLE, LTD.Inventors: Ryousuke Sakamaki, Akihiro Tanba, Takashi Aoyama, Akio Hattori, Teruji Sato, Tatsuya Ohtaka
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Patent number: 7534957Abstract: A cord switch 1 has wire electrodes 12A, 12B spirally arranged along an inner surface of a hollow part 10 of a hollowed insulator 11 in a longitudinal direction such that the wire electrodes do not electrically contact with each other, an outer electrode 13 provided around an outer periphery surface of the hollowed insulator 11 and jacketed with an insulating layer 14. An electrostatic capacitance is formed between the outer electrode 13 and a wire electrode for grounding, and a floating electrostatic capacitance is formed between the outer electrode 13 and the earth. The close approach of the human body to the cord switch 1 can be detected in a non-contact manner by measuring the alteration in the electrostatic capacitance.Type: GrantFiled: October 31, 2006Date of Patent: May 19, 2009Assignees: Hitachi Cable, Ltd., ASMO Co., Ltd.Inventors: Akira Yamaura, Yoshikazu Hayakawa, Tatsuya Ohtaka, Takashi Aoyama, Tomiya Abe, Masaaki Shimizu, Manabu Kato
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Patent number: 7424830Abstract: A torque sensor 1 is provided with two shafts 3, 4 (input shaft 3 and output shaft 4) which constitute a shaft member 2, which is a torque detection object, an elastic member 5 which connects the shafts 3 and 4 coaxially, and a torsion angle of the elastic member 5 is detected as a torque which affects on the shaft member 2. The torque sensor 1 is provided with a hard magnetic member 6 which generates a magnetic flux therearound, a pair of first soft magnetic members 7, 8 which constitute a first magnetic circuit H1 together with the hard magnetic member 6 to change a reluctance by torsion of the elastic member 5, a pair of second soft magnetic members 9, 10 which constitute a second magnetic circuit H2 together with the hard magnetic member 6 to keep the reluctance constant, and a flux detection means 12 which detects a flux density of the second magnetic circuit H2 that varies in accordance with a torsion angle of the elastic member 5.Type: GrantFiled: March 28, 2006Date of Patent: September 16, 2008Assignee: Hitachi Cable, Ltd.Inventors: Toshimichi Matsusaki, Tatsuya Ohtaka, Kouichi Sato, Yukio Ikeda
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Patent number: 7236373Abstract: A recess for fully receiving an electronic component and a window opened from the bottom of the recess to the bottom surface of a metal substrate are formed in the metal substrate. A wiring board is bonded to the underside of the metal substrate, and the electronic component is fixed to the bottom of the recess. Input and output terminals of the electronic component are connected to electrode pads of the wiring board exposed within the window using wire bonding. A metal lid is bonded to the top surface of the metal substrate to close the opening of the recess. Electromagnetic waves generated by the electronic component are confined to the electronic device because the electronic device is surrounded by the metal substrate, the metal lid, and a ground electrode disposed on the wiring board. Heat dissipation performance is assured because the electronic component is connected to the metal substrate.Type: GrantFiled: November 17, 2003Date of Patent: June 26, 2007Assignees: NEC Electronics Corporation, Hitachi Cable, Ltd.Inventors: Kenji Uchida, Koki Hirasawa, Tatsuya Ohtaka, Kazuhisa Kishino, Sachio Suzuki
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Publication number: 20070117445Abstract: A cord switch 1 has wire electrodes 12A, 12B spirally arranged along an inner surface of a hollow part 10 of a hollowed insulator 11 in a longitudinal direction such that the wire electrodes do not electrically contact with each other, an outer electrode 13 provided around an outer periphery surface of the hollowed insulator 11 and jacketed with an insulating layer 14. An electrostatic capacitance is formed between the outer electrode 13 and a wire electrode for grounding, and a floating electrostatic capacitance is formed between the outer electrode 13 and the earth. The close approach of the human body to the cord switch 1 can be detected in a non-contact manner by measuring the alteration in the electrostatic capacitance.Type: ApplicationFiled: October 31, 2006Publication date: May 24, 2007Inventors: Akira Yamaura, Yoshikazu Hayakawa, Tatsuya Ohtaka, Takashi Aoyama, Tomiya Abe, Masaaki Shimizu, Manabu Kato
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Patent number: 7217370Abstract: A wiring board with microstrip structure has: a first conductor layer that is provided with conductor wirings to be connected to a semiconductor chip in its external terminal (bonding pad); a second conductor layer that is provided with a conductor pattern connected through a via to a ground wiring, for supplying a power supply of ground potential to the semiconductor chip; and a third conductor layer that is provided with a power supply terminal connected through a via to a power supply wiring for supplying an operation power supply of a potential other than the ground potential to the semiconductor chip, a signal terminal connected through a via to a signal wiring for transmitting an electric signal, and a ground terminal connected through a via to the conductor pattern in the second conductor layer.Type: GrantFiled: March 8, 2005Date of Patent: May 15, 2007Assignee: Hitachi Cable, Ltd.Inventors: Hiroshi Sugimoto, Tatsuya Ohtaka, Shigeharu Takahagi
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Publication number: 20070012122Abstract: A torque sensor 1 is provided with two shafts 3, 4 (input shaft 3 and output shaft 4) which constitute a shaft member 2, which is a torque detection object, an elastic member 5 which connects the shafts 3 and 4 coaxially, and a torsion angle of the elastic member 5 is detected as a torque which affects on the shaft member 2. The torque sensor 1 is provided with a hard magnetic member 6 which generates a magnetic flux therearound, a pair of first soft magnetic members 7, 8 which constitute a first magnetic circuit H1 together with the hard magnetic member 6 to change a reluctance by torsion of the elastic member 5, a pair of second soft magnetic members 9, 10 which constitute a second magnetic circuit H2 together with the hard magnetic member 6 to keep the reluctance constant, and a flux detection means 12 which detects a flux density of the second magnetic circuit H2 that varies in accordance with a torsion angle of the elastic member 5.Type: ApplicationFiled: March 28, 2006Publication date: January 18, 2007Inventors: Toshimichi Matsusaki, Tatsuya Ohtaka, Kouichi Sato, Yukio Ikeda
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Publication number: 20050205516Abstract: A wiring board with microstrip structure has: a first conductor layer that is provided with conductor wirings to be connected to a semiconductor chip in its external terminal (bonding pad); a second conductor layer that is provided with a conductor pattern connected through a via to a ground wiring, for supplying a power supply of ground potential to the semiconductor chip; and a third conductor layer that is provided with a power supply terminal connected through a via to a power supply wiring for supplying an operation power supply of a potential other than the ground potential to the semiconductor chip, a signal terminal connected through a via to a signal wiring for transmitting an electric signal, and a ground terminal connected through a via to the conductor pattern in the second conductor layer.Type: ApplicationFiled: March 8, 2005Publication date: September 22, 2005Inventors: Hiroshi Sugimoto, Tatsuya Ohtaka, Shigeharu Takahagi
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Patent number: 6924987Abstract: A wiring board with microstrip structure has: a first conductor layer that is provided with conductor wirings to be connected to a semiconductor chip in its external terminal (bonding pad); a second conductor layer that is provided with a conductor pattern connected through a via to a ground wiring, for supplying a power supply of ground potential to the semiconductor chip; and a third conductor layer that is provided with a power supply terminal connected through a via to a power supply wiring for supplying an operation power supply of a potential other than the ground potential to the semiconductor chip, a signal terminal connected through a via to a signal wiring for transmitting an electric signal, and a ground terminal connected through a via to the conductor pattern in the second conductor layer.Type: GrantFiled: September 3, 2002Date of Patent: August 2, 2005Assignee: Hitachi Cable, Ltd.Inventors: Hiroshi Sugimoto, Tatsuya Ohtaka, Shigeharu Takahagi
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Publication number: 20040179344Abstract: A recess for fully receiving an electronic component and a window opened from the bottom of the recess to the bottom surface of a metal substrate are formed in the metal substrate. A wiring board is bonded to the underside of the metal substrate, and the electronic component is fixed to the bottom of the recess. Input and output terminals of the electronic component are connected to electrode pads of the wiring board exposed within the window using wire bonding. A metal lid is bonded to the top surface of the metal substrate to close the opening of the recess. Electromagnetic waves generated by the electronic component are confined to the electronic device because the electronic device is surrounded by the metal substrate, the metal lid, and a ground electrode disposed on the wiring board. Heat dissipation performance is assured because the electronic component is connected to the metal substrate.Type: ApplicationFiled: November 17, 2003Publication date: September 16, 2004Applicants: NEC COMPOUND SEMICONDUCTOR DEVICES, LTD., HITACHI CABLE, LTD.Inventors: Kenji Uchida, Koki Hirasawa, Tatsuya Ohtaka, Kazuhisa Kishino, Sachio Suzuki
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Publication number: 20030043556Abstract: A wiring board with microstrip structure has: a first conductor layer that is provided with conductor wirings to be connected to a semiconductor chip in its external terminal (bonding pad); a second conductor layer that is provided with a conductor pattern connected through a via to a ground wiring, for supplying a power supply of ground potential to the semiconductor chip; and a third conductor layer that is provided with a power supply terminal connected through a via to a power supply wiring for supplying an operation power supply of a potential other than the ground potential to the semiconductor chip, a signal terminal connected through a via to a signal wiring for transmitting an electric signal, and a ground terminal connected through a via to the conductor pattern in the second conductor layer.Type: ApplicationFiled: September 3, 2002Publication date: March 6, 2003Applicant: HITACHI CABLE, LTD.Inventors: Hiroshi Sugimoto, Tatsuya Ohtaka, Shigeharu Takahagi
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Patent number: 6509643Abstract: A TAB tape with a stiffener is prepared by bonding a one-metal TAB tape 20 having a structure wherein a circuit pattern 21 is formed on either surface of a first tape base material, a part thereof is covered with an insulating film 2, and a via hole 12 is defined on a connecting regional section 25 for via, to a tape 30 for second metal prepared by providing a metallic foil layer 14 on either surface of a second tape base material 15 through an adhesive layer 15; the connecting regional section 25 for via on the upper edge of a via hole is electrically connected with a part of the metallic foil layer 14 on the bottom of the hole by means of conducting means (4, 16, and 18), and at the same time, an exposed portion 32 of the metallic foil layer 14, which has not been covered with the one-metal TAB tape 20, is connected to an electrode 71 of a ground line in the semiconductor 7 by means of a bonding wire 83 to lead a ground potential.Type: GrantFiled: June 29, 2001Date of Patent: January 21, 2003Assignee: Hitachi Cable, Ltd.Inventors: Tatsuya Ohtaka, Sachio Suzuki
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Publication number: 20020017716Abstract: A TAB tape with a stiffener is prepared by bonding a one-metal TAB tape 20 having a structure wherein a circuit pattern 21 is formed on either surface of a first tape base material, a part thereof is covered with an insulating film 2, and a via hole 12 is defined on a connecting regional section 25 for via, to a tape 30 for second metal prepared by providing a metallic foil layer 14 on either surface of a second tape base material 15 through an adhesive layer 15; the connecting regional section 25 for via on the upper edge of a via hole is electrically connected with a part of the metallic foil layer 14 on the bottom of the hole by means of conducting means (4, 16, and 18), and at the same time, an exposed portion 32 of the metallic foil layer 14, which has not been covered with the one-metal TAB tape 20, is connected to an electrode 71 of a ground line in the semiconductor 7 by means of a bonding wire 83 to lead a ground potential.Type: ApplicationFiled: June 29, 2001Publication date: February 14, 2002Inventors: Tatsuya Ohtaka, Sachio Suzuki
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Patent number: 6002167Abstract: A semiconductor device has a semi-conductor chip 1 having bonding pads 2 thereon, conductive leads 4, each of which comprises an inner lead 41 and an outer lead 42, insulating adhesive tapes 3 by which each of the inner leads 41 of the leads 4 is stuck to the surface 1a of the semiconductor chip 1, bonding wires 6 by which each of the leads 4 is electrically connected to each corresponding bonding pad 2. The semiconductor chip 1, bonding pad 2, adhesive tapes 3, inner leads 41, and bonding wires 6 are molded by a molding resin 5. The boundary of the inner lead 41 and the cuter lead 42 of the lead 4 is bent in S-shape so that there is a step between inner lead 41 and the upper side portion 42a of the outer lead 42 in a certain depth. Then the outer lead 42 protrude out of the molding resin and extend in J-shape. The surface 4a of the upper side portion 42a of the outer lead 42 is higher than the top of the looped bonding wire 6.Type: GrantFiled: September 20, 1996Date of Patent: December 14, 1999Assignee: Hitachi Cable, Ltd.Inventors: Kazuhisa Hatano, Tatsuya Ohtaka, Takaharu Yonemoto, Osamu Yoshioka, Gen Murakami