Patents by Inventor Yutaka Yoshizawa

Yutaka Yoshizawa 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: 10519853
    Abstract: According to an embodiment, a driving apparatus includes a housing, a first driving body in the housing to be rotatable around a first central axis, an eccentric driving body provided in the first driving body to be rotatable around a second central axis parallel to the first central axis, a first pivot provided at one axial end of the eccentric driving body and eccentrically to the second central axis, a second pivot provided at another axial end of the eccentric driving body and eccentrically to the second central axis, a first moving body rotatably coupled to the first pivot and linearly movable along a third central axis, a first guide body which guides movement of the first moving body, and a second guide body which guides the second pivot to be movable in a first direction.
    Type: Grant
    Filed: March 8, 2019
    Date of Patent: December 31, 2019
    Assignee: Z Mechanism Technology Institute Co., Ltd.
    Inventors: Yutaka Yoshizawa, Jun Nango, Yasuo Yoshizawa, Takumi Yoshizawa, Satoshi Yoshizawa
  • Patent number: 10400599
    Abstract: According to one embodiment, an expander includes a piston provided reciprocatively in a first direction in a cylinder, a crankshaft, an XY-separation crank mechanism provided between the piston and the crankshaft, which converts a reciprocating motion of the piston and a rotary motion of the crankshaft into one another, a cylinder head including an intake port and an outlet port, a suction valve which opens/closes the intake port, a discharge valve which opens/closes the outlet port, an intake-side valve mechanism which opens/closes the suction valve and an outlet-side valve mechanism which opens/closes the discharge valve. At least one of the intake-side and outlet-side valve mechanisms includes an XY separation drive mechanism.
    Type: Grant
    Filed: October 3, 2016
    Date of Patent: September 3, 2019
    Assignees: Z MECHANISM TECHNOLOGY INSTITUTE CO., LTD., TAC RESEARCH INC.
    Inventors: Yasuo Yoshizawa, Takumi Yoshizawa, Yutaka Yoshizawa, Satoshi Yoshizawa, Jun Nango
  • Publication number: 20190203639
    Abstract: According to an embodiment, a driving apparatus includes a housing, a first driving body in the housing to be rotatable around a first central axis, an eccentric driving body provided in the first driving body to be rotatable around a second central axis parallel to the first central axis, a first pivot provided at one axial end of the eccentric driving body and eccentrically to the second central axis, a second pivot provided at another axial end of the eccentric driving body and eccentrically to the second central axis, a first moving body rotatably coupled to the first pivot and linearly movable along a third central axis, a first guide body which guides movement of the first moving body, and a second guide body which guides the second pivot to be movable in a first direction.
    Type: Application
    Filed: March 8, 2019
    Publication date: July 4, 2019
    Inventors: Yutaka Yoshizawa, Jun Nango, Yasuo Yoshizawa, Takumi Yoshizawa, Satoshi Yoshizawa
  • Patent number: 10138807
    Abstract: According to one embodiment, a drive device includes a first piston reciprocatively along a first direction within a first mount plane, a first crankshaft orthogonal to the first mount plane, a first XY separation crank mechanism between the first piston and the first crankshaft, which converts reciprocating motion of the first piston and rotary motion of the first crankshaft into each other, a second piston reciprocatively along a second direction symmetrical to the first direction within a second mount plane symmetrical to the first mount plane about a central reference plane, a second crankshaft orthogonal to the second mount plane, a second XY separation crank mechanism between the second piston and the second crankshaft, which converts reciprocating motion of the second piston and rotary motion of the second crankshaft into each other, and a coupler-synchronizing mechanism which rotates the first and second crankshafts in synchronous with each other.
    Type: Grant
    Filed: August 31, 2017
    Date of Patent: November 27, 2018
    Assignee: Z MECHANISM TECHNOLOGY INSTITUTE CO., LTD.
    Inventors: Yasuo Yoshizawa, Takumi Yoshizawa, Yutaka Yoshizawa, Satoshi Yoshizawa, Shuji Ogai
  • Publication number: 20180030889
    Abstract: According to one embodiment, a drive device includes a first piston reciprocatively along a first direction within a first mount plane, a first crankshaft orthogonal to the first mount plane, a first XY separation crank mechanism between the first piston and the first crankshaft, which converts reciprocating motion of the first piston and rotary motion of the first crankshaft into each other, a second piston reciprocatively along a second direction symmetrical to the first direction within a second mount plane symmetrical to the first mount plane about a central reference plane, a second crankshaft orthogonal to the second mount plane, a second XY separation crank mechanism between the second piston and the second crankshaft, which converts reciprocating motion of the second piston and rotary motion of the second crankshaft into each other, and a coupler-synchronizing mechanism which rotates the first and second crankshafts in synchronous with each other.
    Type: Application
    Filed: August 31, 2017
    Publication date: February 1, 2018
    Applicant: Z Mechanism Technology Institute Co., Ltd.
    Inventors: Yasuo Yoshizawa, Takumi Yoshizawa, Yutaka Yoshizawa, Satoshi Yoshizawa, Shuji Ogai
  • Patent number: 9636821
    Abstract: An industrial robot may include a main body part; a plurality of levers having base end sides turnably connected with the main body part; a plurality of arm parts having respective base end sides turnably connected with respective tip end sides of the plurality of the levers; a movable part which is turnably connected with the respective tip end sides of the plurality of the arm parts; and a plurality of turning drive mechanisms for respectively turning the plurality of the levers. The plurality of the levers may radially extend to an outer peripheral side of the main body part at a substantially equal pitch. The arm part may provided with two arms which are mutually parallel to each other and are formed in a straight shape.
    Type: Grant
    Filed: December 13, 2012
    Date of Patent: May 2, 2017
    Assignee: NIDEC SANKYO CORPORATION
    Inventors: Takayuki Yazawa, Yutaka Yoshizawa, Masashi Fujiwara
  • Publication number: 20170022810
    Abstract: According to one embodiment, an expander includes a piston provided reciprocatively in a first direction in a cylinder, a crankshaft, an XY-separation crank mechanism provided between the piston and the crankshaft, which converts a reciprocating motion of the piston and a rotary motion of the crankshaft into one another, a cylinder head including an intake port and an outlet port, a suction valve which opens/closes the intake port, a discharge valve which opens/closes the outlet port, an intake-side valve mechanism which opens/closes the suction valve and an outlet-side valve mechanism which opens/closes the discharge valve. At least one of the intake-side and outlet-side valve mechanisms includes an XY separation drive mechanism.
    Type: Application
    Filed: October 3, 2016
    Publication date: January 26, 2017
    Applicants: Z Mechanism Technology Institute Co., Ltd., TAC Research Inc.
    Inventors: Yasuo Yoshizawa, Takumi Yoshizawa, Yutaka Yoshizawa, Satoshi Yoshizawa
  • Patent number: 9519742
    Abstract: According to an embodiment, a semiconductor device switches circuit forms and circuit configurations of a plurality of analog functional circuits by rearranging a command execution order according to the command execution order set in advance irrespectively of a command execution order specified by a user and executing the commands.
    Type: Grant
    Filed: October 20, 2014
    Date of Patent: December 13, 2016
    Assignee: Renesas Electronics Corporation
    Inventor: Yutaka Yoshizawa
  • Patent number: 9316249
    Abstract: An XY separate crank mechanism provided between a movable body reciprocating in a first direction and a rotatable crankshaft to mutually convert reciprocating motion of the movable body and rotational motion of the crankshaft, includes a support member provided freely reciprocatingly in the first direction, a crank connecting member mounted on the support member freely reciprocatingly in a second direction perpendicular to the first direction and with which a crank of the crankshaft is rotatably engaged, and a connecting member configured to connect the piston and the support member and reciprocate in the first direction together with the piston and the support member.
    Type: Grant
    Filed: October 22, 2013
    Date of Patent: April 19, 2016
    Assignees: TAC Research Inc., NAKASHIN REISHOKU CO., LTD.
    Inventors: Yasuo Yoshizawa, Takumi Yoshizawa, Yutaka Yoshizawa, Satoshi Yoshizawa
  • Patent number: 9166573
    Abstract: According to an aspect of the present invention, in a semiconductor device, a plurality of commands for specifying a circuit configuration of an analog front-end unit are transmitted from a processing unit to the analog front-end unit, an analysis is performed on the plurality of commands received by the analog front-end unit, and when a circuit configuration of the analog front-end unit which is to be updated and is determined according to the plurality of commands includes a forbidden condition that has been previously set, updating processing of the circuit configuration according to the plurality of commands is stopped.
    Type: Grant
    Filed: January 3, 2014
    Date of Patent: October 20, 2015
    Assignee: Renesas Electronics Corporation
    Inventor: Yutaka Yoshizawa
  • Publication number: 20150135155
    Abstract: According to an embodiment, a semiconductor device switches circuit forms and circuit configurations of a plurality of analog functional circuits by rearranging a command execution order according to the command execution order set in advance irrespectively of a command execution order specified by a user and executing the commands.
    Type: Application
    Filed: October 20, 2014
    Publication date: May 14, 2015
    Inventor: Yutaka YOSHIZAWA
  • Publication number: 20150108287
    Abstract: Provided is a technology which makes an undercut portion small and reduces a limit on a mold structure in a wire holder mounting structure. A holder fixing portion (30) formed in a cabinet (20) is configured by including a box portion (32) and a holding rib (40). The box portion (32) has an open in an upper side in drawings, and is configured by right and left wall surfaces (32a), a rear wall surface (32b) and a bottom surface (32c). A holder mounting hole (34) is formed in the rear wall surface (32b), and a wire holder (90) is inserted in a direction of the holder mounting hole (34) (direction of an arrow X1 in the drawings) to be fixed. In the fixed state, a leaf spring portion (92) (holding portion) of the wire holder (90) is placed so as to be in contact with the holding rib (40).
    Type: Application
    Filed: August 20, 2012
    Publication date: April 23, 2015
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Shinichi Arai, Toshihiro Yamamichi, Yutaka Yoshizawa
  • Publication number: 20140318300
    Abstract: An industrial robot may include a main body part; a plurality of levers having base end sides turnably connected with the main body part; a plurality of arm parts having respective base end sides turnably connected with respective tip end sides of the plurality of the levers; a movable part which is turnably connected with the respective tip end sides of the plurality of the arm parts; and a plurality of turning drive mechanisms for respectively turning the plurality of the levers. The plurality of the levers may radially extend to an outer peripheral side of the main body part at a substantially equal pitch.
    Type: Application
    Filed: December 13, 2012
    Publication date: October 30, 2014
    Inventors: Takayuki Yazawa, Yutaka Yoshizawa, Masashi Fujiwara
  • Publication number: 20140211440
    Abstract: Provided is technology that stably fixes a plurality of harnesses all at once, without using a wire holder. A line-shaping section 30 for routing harnesses 99 is created in a front cabinet forming section 20. The line-shaping section 30 comprises two ribs 40 separated by a prescribed distance and a hook 50 positioned in the center thereof and created so as to cover from the top, when viewed from the side surface. The harnesses 99 held by the ribs 40 and the hook are prevented from being displaced outside, by a hook locking section 54. In addition, routing work for the harnesses 99 is able to be performed smoothly since a sloping surface (a guide section 56) is created in a tip part of the hook locking section 54.
    Type: Application
    Filed: May 24, 2012
    Publication date: July 31, 2014
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Noriyuki Shibuya, Hideaki Nishizawa, Masaya Fujihara, Takashi Kumashiro, Yutaka Yoshizawa, Manabu Shimokobe
  • Publication number: 20140191796
    Abstract: According to an aspect of the present invention, in a semiconductor device, a plurality of commands for specifying a circuit configuration of an analog front-end unit are transmitted from a processing unit to the analog front-end unit, an analysis is performed on the plurality of commands received by the analog front-end unit, and when a circuit configuration of the analog front-end unit which is to be updated and is determined according to the plurality of commands includes a forbidden condition that has been previously set, updating processing of the circuit configuration according to the plurality of commands is stopped.
    Type: Application
    Filed: January 3, 2014
    Publication date: July 10, 2014
    Applicant: Renesas Electronics Corporation
    Inventor: Yutaka YOSHIZAWA
  • Publication number: 20140041622
    Abstract: An XY separate crank mechanism provided between a movable body reciprocating in a first direction and a rotatable crankshaft to mutually convert reciprocating motion of the movable body and rotational motion of the crankshaft, includes a support member provided freely reciprocatingly in the first direction, a crank connecting member mounted on the support member freely reciprocatingly in a second direction perpendicular to the first direction and with which a crank of the crankshaft is rotatably engaged, and a connecting member configured to connect the piston and the support member and reciprocate in the first direction together with the piston and the support member.
    Type: Application
    Filed: October 22, 2013
    Publication date: February 13, 2014
    Applicants: NAKASHIN REISHOKU CO., LTD., TAC RESEARCH INC.
    Inventors: Yasuo Yoshizawa, Takumi Yoshizawa, Yutaka Yoshizawa, Satoshi Yoshizawa
  • Patent number: 6973395
    Abstract: An observation apparatus according to one embodiment can include a timing generating unit (2) that generates a timing signal at a predetermined period. A sampling unit (3) can sample a current observation signal of a power supply current on the basis of the timing signal, and store sampled data in data storing unit (5). A data number adjusting unit (6) can adjust the number of data samples to a number that is a power of two. An arithmetic operating unit (4) can Fourier-transform the adjusted data to generate frequency spectrum results of the current observation signal. In addition, a failure inspection apparatus according to one embodiment analyzes the frequency spectrum of an integrated circuit under observation to determine a failure condition of the integrated circuit.
    Type: Grant
    Filed: August 7, 2003
    Date of Patent: December 6, 2005
    Assignee: NEC Electronics Corporation
    Inventors: Yutaka Yoshizawa, Kazuhiro Sakaguchi
  • Publication number: 20040034490
    Abstract: An observation apparatus according to one embodiment can include a timing generating unit (2) that generates a timing signal at a predetermined period. A sampling unit (3) can sample a current observation signal of a power supply current on the basis of the timing signal, and store sampled data in data storing unit (5). A data number adjusting unit (6) can adjust the number of data samples to a number that is a power of two. An arithmetic operating unit (4) can Fourier-transform the adjusted data to generate frequency spectrum results of the current observation signal. In addition, a failure inspection apparatus according to one embodiment analyzes the frequency spectrum of an integrated circuit under observation to determine a failure condition of the integrated circuit.
    Type: Application
    Filed: August 7, 2003
    Publication date: February 19, 2004
    Inventors: Yutaka Yoshizawa, Kazuhiro Sakaguchi
  • Publication number: 20020184578
    Abstract: A built in self test (BIST) circuit (100) including an address generator (3) providing an address including a subarray address is disclosed. Address generator (3) may include an address counter (4), a address modulation circuit (5), a subarray under test designating circuit (6), and an address scramble circuit (7). Address modulation circuit (5) may modulate an address counter output (4a) in accordance with a test mode (19). Subarray under test designating circuit (6) may provide an address for a subarray to be tested. A memory interface block (9) may receive the address (17 and 18) from address generator (3) and test mode (19) and may generate a memory test command accordingly. Address (17 and 18) and test mode (19) may be provided external to BIST circuit (100). In this way, a memory may be tested using complicated patterns and failure modes and location may be identified.
    Type: Application
    Filed: May 28, 2002
    Publication date: December 5, 2002
    Inventor: Yutaka Yoshizawa
  • Publication number: 20010003051
    Abstract: The invention provides a semiconductor integrated circuit of good quality, a manufacturing method for manufacturing such a semiconductor integrated circuit and a test method thereof.
    Type: Application
    Filed: December 6, 2000
    Publication date: June 7, 2001
    Applicant: NEK CORPORATION
    Inventor: Yutaka Yoshizawa