Patents by Inventor Akito Sakai
Akito Sakai 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: 11683985Abstract: A thermoelectric conversion element is made of a material with a band structure having Weyl points in the vicinity of Fermi energy. The thermoelectric conversion element has a thermoelectric mechanism for generating electromotive force by the anomalous Nernst effect. A thermoelectric conversion device includes a substrate; and a power generator provided on the substrate and including a plurality of thermoelectric conversion elements. Each of the plurality of thermoelectric conversion elements has a shape extending in one direction, and is made of a material identical to that of the above-mentioned thermoelectric conversion element. The plurality of thermoelectric conversion elements is arranged in parallel to one another in a direction perpendicular to the one direction and electrically connected in series to one another in a serpentine shape.Type: GrantFiled: July 3, 2018Date of Patent: June 20, 2023Assignee: THE UNIVERSITY OF TOKYOInventors: Satoru Nakatsuji, Akito Sakai
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Publication number: 20220246820Abstract: A thermoelectric conversion element is made of: a first material with a stoichiometric composition of Fe3X where X is a main-group or a transition element; a second material with an off-stoichiometric composition in which a composition ratio of Fe to X deviates from that of the first material; a third material obtained by substituting part of Fe sites in the first material or part of Fe sites in the second material by a main-group metal or a transition element other than X; a fourth material with a composition of Fe3M11-xM2x (0<x<1) where M1 and M2 are different main-group elements; or a fifth material obtained by substituting part of Fe sites in the first material by a transition element other than X and substituting part of X sites in the first material by a main-group metal element other than X. The first to the fifth materials exhibit an anomalous Nernst effect.Type: ApplicationFiled: April 27, 2020Publication date: August 4, 2022Inventors: Satoru Nakatsuji, Akito Sakai, Tomoya Higo
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Publication number: 20200212282Abstract: A thermoelectric conversion element is made of a material with a band structure having Weyl points in the vicinity of Fermi energy. The thermoelectric conversion element has a thermoelectric mechanism for generating electromotive force by the anomalous Nernst effect. A thermoelectric conversion device includes a substrate; and a power generator provided on the substrate and including a plurality of thermoelectric conversion elements. Each of the plurality of thermoelectric conversion elements has a shape extending in one direction, and is made of a material identical to that of the above-mentioned thermoelectric conversion element. The plurality of thermoelectric conversion elements is arranged in parallel to one another in a direction perpendicular to the one direction and electrically connected in series to one another in a serpentine shape.Type: ApplicationFiled: July 3, 2018Publication date: July 2, 2020Inventors: Satoru Nakatsuji, Akito Sakai
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Publication number: 20100291130Abstract: Embodiments described herein include nucleic acid sequences, which encode hepatitis C virus of strain HC-TN, genotype 1a, proteins and polypeptides and fragments thereof. Use of these compositions, and diagnostics for HCV and in the development of screening assays for the identification of antiviral agents for HCV are also contemplated.Type: ApplicationFiled: December 14, 2009Publication date: November 18, 2010Applicants: OF HEALTH AND HUMAN SERVICESInventors: Jens Bukh, Robert H. Purcell, Suzanne U. Emerson, Akito Sakai, Patrizia Farci
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Patent number: 7678569Abstract: Embodiments described herein include nucleic acid sequences, which encode hepatitis C virus of strain HC-TN, genotype 1a, proteins and polypeptides and fragments thereof. Use of these compositions, and diagnostics for HCV and in the development of screening assays for the identification of antiviral agents for HCV are also contemplated.Type: GrantFiled: April 2, 2008Date of Patent: March 16, 2010Assignee: The United States of America as represented by the Department of Health and Human ServicesInventors: Jens Bukh, Robert H. Purcell, Suzanne U. Emerson, Akito Sakai
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Publication number: 20090252755Abstract: Embodiments described herein include nucleic acid sequences, which encode hepatitis C virus of strain HC-TN, genotype 1a, proteins and polypeptides and fragments thereof. Use of these compositions, and diagnostics for HCV and in the development of screening assays for the identification of antiviral agents for HCV are also contemplated.Type: ApplicationFiled: April 2, 2008Publication date: October 8, 2009Inventors: Jens Bukh, Robert H. Purcell, Suzanne U. Emerson, Akito Sakai
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Patent number: 7056507Abstract: An adsorbent for removing hepatitis C virus which has the ability to adsorb HCV particles, particularly immune-complex HCV particles, from a patient's body blood safely and with high efficiency and high selectivity for enhancing the efficacy of interferon therapy, an HCV adsorption apparatus including said adsorbent, and a adsorbing method for removing HCV are provided. An adsorbent for removing hepatitis C virus which comprises a compound capable of adsorbing hepatitis C virus as immobilized on a water-insoluble carrier, an adsorption apparatus including said adsorbent, and an adsorbing method for removing HCV.Type: GrantFiled: June 11, 2003Date of Patent: June 6, 2006Assignee: Kaneka CorporationInventors: Eiji Ogino, Michio Nomura, Takashi Asahi, Shuichi Kaneko, Akito Sakai
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Publication number: 20040006214Abstract: An adsorbent for removing hepatitis C virus which has the ability to adsorb HCV particles, particularly immune-complex HCV particles, from a patient's body blood safely and with high efficiency and high selectivity for enhancing the efficacy of interferon therapy, an HCV adsorption apparatus including said adsorbent, and a adsorbing method for removing HCV are provided.Type: ApplicationFiled: June 11, 2003Publication date: January 8, 2004Applicant: Kaneka CorporationInventors: Eiji Ogino, Michio Nomura, Takashi Asahi, Shuichi Kaneko, Akito Sakai
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Patent number: 6600014Abstract: An adsorbent for removing hepatitis C virus which has the ability to adsorb HCV particles, particularly immune-complex HCV particles, from a patient's body blood safely and with high efficiency and high selectivity for enhancing the efficacy of interferon therapy, an HCV adsorption apparatus including said adsorbent, and a adsorbing method for removing HCV are provided. An adsorbent for removing hepatitis C virus which comprises a compound capable of adsorbing hepatitis C virus as immobilized on a water-insoluble carrier, an adsorption apparatus including said adsorbent, and an adsorbing method for removing HCV.Type: GrantFiled: November 9, 1999Date of Patent: July 29, 2003Assignee: Kaneka CorporationInventors: Eiji Ogino, Michio Nomura, Takashi Asahi, Shuichi Kaneko, Akito Sakai
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Publication number: 20030044769Abstract: An adsorbent for removing hepatitis C virus which has the ability to adsorb HCV particles, particularly immune-complex HCV particles, from a patient's body blood safely and with high efficiency and high selectivity for enhancing the efficacy of interferon therapy, an HCV adsorption apparatus including said adsorbent, and a adsorbing method for removing HCV are provided.Type: ApplicationFiled: November 9, 1999Publication date: March 6, 2003Inventors: EIJI OGINO, MICHIO NOMURA, TAKASHI ASAHI, SHUICHI KANEKO, AKITO SAKAI
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Patent number: 5988305Abstract: A hood structure for absorbing an impact applied to a hood of an automotive vehicle at collision has: a hood outer panel for closing an engine room; at least one impact absorb body disposed under the hood outer panel, for absorbing the impact applied to the hood when deformed; and an engine disposed under the impact absorb body, for stopping the deformed impact absorb body. Here, to reduce head injury criterion (HIC) effectively at a shortest possible stoke of the hood outer panel, an impact energy absorption rate of the impact absorb body and a total hollow gap formed between the hood outer panel and the engine are both determined in such a way that an impact energy generated at collision can be absorbed in accordance with an ideal impact energy absorption waveform Cm representative of an ideal relationship between reaction force and stroke of the deformed hood outer panel.Type: GrantFiled: October 2, 1997Date of Patent: November 23, 1999Assignee: Nissan Motor Co., Ltd.Inventors: Akito Sakai, Masanobu Yoshioka
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Patent number: 5706908Abstract: A hood structure for absorbing an impact applied to a hood (31) of an automotive vehicle at collision has: a hood outer panel (33) for closing an engine room (35); at least one impact absorb body (43) disposed under the hood outer panel, for absorbing the impact applied to the hood when deformed; and an engine (37) disposed under the impact absorb body, for stopping the deformed impact absorb body. Here, to reduce head injury criterion (HIC) effectively at a shortest possible stoke of the hood outer panel, an impact energy absorption rate of the impact absorb body and a total hollow gap formed between the hood outer panel (33) and the engine (37) are both determined in such a way that an impact energy generated at collision can be absorbed in accordance with an ideal impact energy absorption waveform Cm representative of an ideal relationship between reaction force (F) and stroke (S) of the deformed hood outer panel.Type: GrantFiled: April 12, 1995Date of Patent: January 13, 1998Assignee: Nissan Motor Co., Ltd.Inventors: Akito Sakai, Masanobu Yoshioka
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Patent number: 5222758Abstract: A structure for supporting a vehicle suspension unit to a floor panel of a vehicle includes a rear side member secured to a longitudinally extending side portion of the floor panel and a rear cross member secured to a laterally extending portion of the floor panel. The rear cross member has at a side end portion thereof an opening. A collar has a through bore mated with the opening. An upper reinforcing member is secured to the collar, the rear side member and the rear cross member. A lower reinforcing member is secured to the collar and the rear cross member. A suspension supporting bolt has a serrated portion which is so sized as to fit into the through bore of the collar. The suspension supporting bolt is secured to the collar by thrusting the serrated portion into the through bore of the collar. The suspension supporting bolt passes through the collar and the opening and is secured to the vehicle suspension unit.Type: GrantFiled: June 12, 1991Date of Patent: June 29, 1993Assignees: Nissan Motor Co., Ltd., Yorozu CorporationInventors: Akito Sakai, Kunihiro Nishihara