Patents by Inventor Keisuke Hayakawa
Keisuke Hayakawa 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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Publication number: 20220350572Abstract: A random number generation unit and a computing system using the same, the unit including a magnetic tunnel junction element and being capable of developing the characteristics required for the execution of probabilistic computing and operating at a higher speed. A magnetic tunnel junction element includes a fixed layer having a ferromagnet and having a magnetization direction fixed substantially, a free layer having a ferromagnet and having a magnetization direction varying with a first time constant, and a barrier layer disposed between the layers configured with an insulator. The magnetic tunnel junction element has a shift magnetic field of an absolute value of 20 millitesla or smaller. The fixed layer has a plurality of ferromagnetic and non-magnetic coupling layers laminated one upon another, and ferromagnetic layers adjacent to each other among the respective ferromagnetic layers are coupled in terms of magnetization by the non-magnetic coupling layers in an antiparallel manner.Type: ApplicationFiled: May 25, 2020Publication date: November 3, 2022Applicant: TOHOKU UNIVERSITYInventors: Shunsuke FUKAMI, William Andrew BORDERS, Takuya FUNATSU, Shun KANAI, Keisuke HAYAKAWA, Hideo OHNO
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Patent number: 10954902Abstract: An internal combustion engine includes a cylinder block including a cylinder, a cylinder head including an intake port, the intake port communicating with the cylinder, an intake manifold fixed to the cylinder head, the intake manifold being configured to supply intake air into the cylinder, and a dynamic vibration absorber configured to suppress vibration of the intake manifold. A direction that is orthogonal to both a central axis of the cylinder and a rotational axis of a crankshaft of the internal combustion engine is defined as a width direction. The dynamic vibration absorber is attached to the intake manifold on an opposite side of a center of gravity of the intake manifold from the cylinder head in the width direction.Type: GrantFiled: October 29, 2019Date of Patent: March 23, 2021Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Yoshitomo Mizuta, Masaya Tagawa, Kenta Takatani, Keisuke Hayakawa
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Publication number: 20200149500Abstract: An internal combustion engine includes a cylinder block including a cylinder, a cylinder head including an intake port, the intake port communicating with the cylinder, an intake manifold fixed to the cylinder head, the intake manifold being configured to supply intake air into the cylinder, and a dynamic vibration absorber configured to suppress vibration of the intake manifold. A direction that is orthogonal to both a central axis of the cylinder and a rotational axis of a crankshaft of the internal combustion engine is defined as a width direction. The dynamic vibration absorber is attached to the intake manifold on an opposite side of a center of gravity of the intake manifold from the cylinder head in the width direction.Type: ApplicationFiled: October 29, 2019Publication date: May 14, 2020Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Yoshitomo MIZUTA, Masaya TAGAWA, Kenta TAKATANI, Keisuke HAYAKAWA
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Patent number: 7675889Abstract: In a communications network where first and second communication terminals are interconnected via a common communication medium such as a local area network, the terminals jointly establish an infrared light private communication link if they are brought close to each other. The first and second terminals communicate their network addresses to each other either via the local area network or via the private communication link, and establish a session between the communicated network addresses via the local area network if the strength of the infrared-light private communication link at the receiving end is higher than a decision threshold.Type: GrantFiled: June 13, 2003Date of Patent: March 9, 2010Assignee: NEC CorporationInventors: Toshiyasu Nakao, Atsushi Kashitani, Keisuke Hayakawa, Mie Takahashi
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Patent number: 7315798Abstract: A natural frequency and a calculated mode vector are calculated by using a finite-element method models for analysis which include an object of analysis including a plurality of components and a plurality of elements which are positioned between the components of the object of analysis and indicate a boundary condition between the components, the calculated mode vector having high degree of correlation for an experimental mode vector is extracted and set to a pair, and identifying the boundary condition of the elements based on the extracted calculated mode vector and the natural frequency corresponding to the extracted calculated mode vector.Type: GrantFiled: July 31, 2003Date of Patent: January 1, 2008Assignee: Kabushiki Kaisha Toyota Chuo KenkyushoInventors: Yoshitsugu Goto, Tatsuyuki Amago, Yoshio Kojima, Mizuho Inagaki, Kazuaki Chiku, Toru Matsushima, Keisuke Hayakawa
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Patent number: 6765559Abstract: A page information display method for displaying electronic information includes a page turning operation detecting step of outputting a page turning operation detecting signal when a dragging is made on an operation unit in parallel or unparallel to a predefined page turning direction at a current page read from a storage unit that is to be displayed at present, a next display page setting step of setting a preceding page or a succeeding page immediately before or after a current page depending on a direction of a dragging operation to a next display page to be displayed next, when a page turning operation detecting signal is detected in the page turning operation detecting step, and a page turning process step of displaying the next display page set in the next display page setting step in place of the current page on a display unit.Type: GrantFiled: March 20, 2001Date of Patent: July 20, 2004Assignee: NEC CorporationInventor: Keisuke Hayakawa
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Publication number: 20040125081Abstract: To provide a user interface for gaining access to information which is user friendly, without regard to an experience of using a computer. There are included a page turning operation detecting step A1 of outputting a page turning operation detecting signal when a dragging is made on an operation unit in parallel or anti-parallel to a predefined page turning direction at a current page read from a storage unit 4 that is to be displayed at present, a next display page setting step A2 of setting a preceding page or a succeeding page immediately before or after a current page depending on a direction of a dragging operation to a next display page to be displayed at the next time, when a page turning operation detecting signal is detected in the page turning operation detecting step A1, and a page turning process step A3 of displaying the next display page set in the next display page setting step in place of the current page on a display unit 1.Type: ApplicationFiled: December 15, 2003Publication date: July 1, 2004Applicant: NEC CorporationInventor: Keisuke Hayakawa
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Patent number: 6741268Abstract: To provide a user interface for viewing the information which is easily understood by all people, irrespective of the computer experiences, the present invention adopts a user interface having a metaphor like a book, newspaper or magazine, and for realizing the metaphor of this book, the electronic information is allowed to view in a unit of page of predetermined size therefore, the electronic information is displayed in a unit of page of predetermined size in an information viewing area of a display portion.Type: GrantFiled: July 26, 2000Date of Patent: May 25, 2004Assignee: NEC CorporationInventor: Keisuke Hayakawa
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Publication number: 20040093195Abstract: A natural frequency and a calculated mode vector are calculated by using a finite-element method models for analysis which include an object of analysis including a plurality of components and a plurality of elements which are positioned between the components of the object of analysis and indicate a boundary condition between the components, the calculated mode vector having high degree of correlation for an experimental mode vector is extracted and set to a pair, and identifying the boundary condition of the elements based on the extracted calculated mode vector and the natural frequency corresponding to the extracted calculated mode vector.Type: ApplicationFiled: July 31, 2003Publication date: May 13, 2004Applicant: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHOInventors: Yoshitsugu Goto, Tatsuyuki Amago, Yoshio Kojima, Mizuho Inagaki, Kazuaki Chiku, Toru Matsushima, Keisuke Hayakawa
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Publication number: 20030231611Abstract: In a communications network where first and second communication terminals are interconnected via a common communication medium such as a local area network, the terminals jointly establish an infrared light private communication link if they are brought close to each other. The first and second terminals communicate their network addresses to each other either via the local area network or via the private communication link, and establish a session between the communicated network addresses via the local area network if the strength of the infrared-light private communication link at the receiving end is higher than a decision threshold..Type: ApplicationFiled: June 13, 2003Publication date: December 18, 2003Applicant: NEC CORPORATIONInventors: Toshiyasu Nakao, Atsushi Kashitani, Keisuke Hayakawa, Mie Takahashi
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Publication number: 20010024195Abstract: To provide a user interface for gaining access to information which is user friendly, without regard to an experience of using a computer. There are included a page turning operation detecting step A1 of outputting a page turning operation detecting signal when a dragging is made on an operation unit in parallel or anti-parallel to a predefined page turning direction at a current page read from a storage unit 4 that is to be displayed at present, a next display page setting step A2 of setting a preceding page or a succeeding page immediately before or after a current page depending on a direction of a dragging operation to a next display page to be displayed at the next time, when a page turning operation detecting signal is detected in the page turning operation detecting step A1, and a page turning process step A3 of displaying the next display page set in the next display page setting step in place of the current page on a display unit 1.Type: ApplicationFiled: March 20, 2001Publication date: September 27, 2001Inventor: Keisuke Hayakawa