Patents by Inventor Yoshitsugu Kosugi
Yoshitsugu Kosugi 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: 11117588Abstract: When controlling a driving source torque in order to accelerate a driving wheel, a driving source torque controller performs shock suppression control of controlling the driving source torque based on an acquired driving source torque so that at least one of (i) an absolute value of relative speed between power transmission members on a power transmission path decreases when backlash between the power transmission members decreases or (ii) a transmission torque which is transmitted between the power transmission members on the power transmission path decreases when the backlash between the power transmission members is eliminated.Type: GrantFiled: January 10, 2020Date of Patent: September 14, 2021Assignee: YAMAHA HATSUDOKI KABUSHIKI KAISHAInventors: Yuichiro Fukazawa, Naotsugu Kamiya, Masaki Shimazaki, Takahiro Ozawa, Seiya Uno, Takuya Okamoto, Mitsutoshi Koide, Yoshitsugu Kosugi
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Publication number: 20200148207Abstract: When controlling a driving source torque in order to accelerate a driving wheel, a driving source torque controller performs shock suppression control of controlling the driving source torque based on an acquired driving source torque so that at least one of (i) an absolute value of relative speed between power transmission members on a power transmission path decreases when backlash between the power transmission members decreases or (ii) a transmission torque which is transmitted between the power transmission members on the power transmission path decreases when the backlash between the power transmission members is eliminated.Type: ApplicationFiled: January 10, 2020Publication date: May 14, 2020Applicant: YAMAHA HATSUDOKI KABUSHIKI KAISHAInventors: Yuichiro FUKAZAWA, Naotsugu KAMIYA, Masaki SHIMAZAKI, Takahiro OZAWA, Seiya UNO, Takuya OKAMOTO, Mitsutoshi KOIDE, Yoshitsugu KOSUGI
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Patent number: 7401604Abstract: An engine control device and method that prevents fuel injection quantity from becoming unstable due to a rapid change of a correction quantity even in a predetermined operation state such as acceleration time and thus stabilizes an air-fuel ratio. Under a predetermined operating state, even when feedback control of oxygen in exhaust gas is stopped, a correction quantity immediately before the predetermined operating state is held by a correction quantity storage part and the correction of the fuel injection time is performed based on the correction quantity.Type: GrantFiled: February 20, 2007Date of Patent: July 22, 2008Assignee: Yamaha Hatsudoki Kabushiki KaishaInventors: Harumi Furukawa, Yoshitsugu Kosugi
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Publication number: 20070199552Abstract: An engine control device and method that prevents fuel injection quantity from becoming unstable due to a rapid change of a correction quantity even in a predetermined operation state such as acceleration time and thus stabilizes an air-fuel ratio. Under a predetermined operating state, even when feedback control of oxygen in exhaust gas is stopped, a correction quantity immediately before the predetermined operating state is held by a correction quantity storage part and the correction of the fuel injection time is performed based on the correction quantity.Type: ApplicationFiled: February 20, 2007Publication date: August 30, 2007Applicant: YAMAHA HATSUDOKI KABUSHIKI KAISHAInventors: Harumi FURUKAWA, Yoshitsugu KOSUGI
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Publication number: 20070129589Abstract: A novel olefin production process for forming at least one olefin from two or more olefins in the presence of a catalyst containing at least one selected from the group consisting of nickel, aluminum, manganese, iron and copper which is supported by a regular mesoporous material. In the above olefin production process, propylene can be formed from ethylene and butene. In the above olefin production process, water vapor can be contained in a reaction gas in a molar ratio based on the total of the raw material olefins of 0.001 to 1.Type: ApplicationFiled: September 3, 2003Publication date: June 7, 2007Inventors: Masakazu Iwamoto, Yoshitsugu Kosugi
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Patent number: 6960454Abstract: The invention relates to a thermophilic enzyme having ?-glycosidase activity which comprises the amino acid sequence of SEQ ID NO: 2 in which one or a plurality of amino acid residues may be deleted, replaced or added.Type: GrantFiled: August 6, 1999Date of Patent: November 1, 2005Assignee: Director-General of Agency of Industrial Science and TechnologyInventors: Ikuo Matsui, Kazuhiko Ishikawa, Hiroyasu Ishida, Yoshitsugu Kosugi
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Publication number: 20040161826Abstract: The invention is directed to novel thermostable aminotransferases useful in synthesizing an amino acid derivative with high optical purity, and nucleic acids encoding the enzyme. The invention also includes antibodies that specifically bind to the aminotransferases of the invention.Type: ApplicationFiled: March 26, 2004Publication date: August 19, 2004Applicant: National Institute of Advanced Industrial Science and Technology, a Tokyo, Japan corporationInventors: Ikuo Matsui, Kazuhiko Ishikawa, Hiroyasu Ishida, Yoshitsugu Kosugi, Eriko Matsui
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Publication number: 20030129723Abstract: The present invention provides a polypeptide that has a thermophilic endoglucanase activity, a DNA that comprises a nucleotide sequence encoding the polypeptide, a recombinant DNA and an expression vector that comprise the DNA, a transformant that is transformed by the expression vector, and a method of producing the polypeptide using the transformant. The endoglucanase of the present invention shows a maximum activity at a high temperature range around 97° C., so that it is industrially useful.Type: ApplicationFiled: November 14, 2002Publication date: July 10, 2003Applicant: RAKUTO KASEI INDUSTRIAL CO., LTD.Inventors: Kazuhiko Ishikawa, Hiroyasu Ishida, Yoshitsugu Kosugi, Susumu Ando, Akio Shimomura
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Publication number: 20020102635Abstract: The invention relates to a thermophilic enzyme having &bgr;-glycosidase activity which comprises the amino acid sequence of SEQ ID NO: 2 in which one or a plurality of amino acid residues may be deleted, replaced or added.Type: ApplicationFiled: August 6, 1999Publication date: August 1, 2002Inventors: IKUO MATSUI, KAZUHIKO ISHIKAWA, HIROYASU ISHIDA, YOSHITSUGU KOSUGI
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Publication number: 20020081697Abstract: The invention is directed to novel thermostable aminotransferases useful in synthesizing an amino acid derivative with high optical purity, and nucleic acids encoding the enzyme. The invention also includes antibodies that specifically bind to the aminotransferases of the invention.Type: ApplicationFiled: September 28, 2001Publication date: June 27, 2002Inventors: Ikuo Matsui, Kazuhiko Ishikawa, Hiroyasu Ishida, Yoshitsugu Kosugi, Eriko Matsui
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Patent number: 6391604Abstract: A thermostable phosphatidylethanolamine N-methyltransferase and a process for producing the enzyme are provided. A host cell is transformed with an expression vector containing DNA encoding a thermostable enzyme derived from hyper-thermophilic archaea such as Pyrococcus, the enzyme having phosphatidylethanolamine N-methyltransferase activity and an optimum temperature of 90° C. or higher, and the transformed host cell is cultured.Type: GrantFiled: March 3, 2000Date of Patent: May 21, 2002Assignee: Agency of Industrial Science and TechnologyInventors: Ikuo Matsui, Kazuhiko Ishikawa, Hiroyasu Ishida, Yoshitsugu Kosugi, Yasutaka Tahara
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Patent number: 6255081Abstract: The present invention relates to a thermostable Flap endonuclease whose optimum temperature is 75° C. or more and DNA coding for (a) a protein consisting of the amino acid sequence shown in SEQ ID NO:2 or (b) a protein with Flap endonuclease activity, consisting of an amino acid sequence where in the amino acid sequence (a), one or more amino acids are deleted, substituted or added. According to the present invention, there is provided a thermostable Flap endonuclease whose optimum temperature for reaction is 75° C. or more. Further, this enzyme is thermally stable, so it becomes possible to develop new techniques of conducting artificial homologous recombination or genetic shuffling highly efficiently by coupling the enzyme reaction with PCR.Type: GrantFiled: October 21, 1998Date of Patent: July 3, 2001Assignee: Director - General of Agency of Industrial Science and TechnologyInventors: Ikuo Matsui, Kazuhiko Ishikawa, Yoshitsugu Kosugi, Eriko Matsui, Satoko Kawasaki
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Patent number: 6251649Abstract: The present invention relates to a thermostable Flap endonuclease whose optimum temperature is 75° C. or more and DNA coding for (a) a protein consisting of the amino acid sequence shown in SEQ ID NO:2 or (b) a protein with Flap endonuclease activity, consisting of an amino acid sequence where in the amino acid sequence (a), one or more amino acids are deleted, substituted or added. According to the present invention, there is provided a thermostable Flap endonuclease whose optimum temperature for reaction is 75° C. or more. Further, this enzyme is thermally stable, so it becomes possible to develop new techniques of conducting artificial homologous recombination or genetic shuffling highly efficiently by coupling the enzyme reaction with PCR.Type: GrantFiled: September 3, 1998Date of Patent: June 26, 2001Assignee: Director - General of Agency of Industrial Science and TechnologyInventors: Ikuo Matsui, Kazuhiko Ishikawa, Yoshitsugu Kosugi, Eriko Matsui, Satoko Kawasaki
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Patent number: 6133012Abstract: An acyl peptide hydrolase having an optimum temperature range of 90-95.degree. C. and a gene encoding the same are disclosed. With the above enzyme, it becomes possible to conduct amino terminal analysis of acylated proteins and peptides at high temperatures.Type: GrantFiled: January 30, 1998Date of Patent: October 17, 2000Assignee: Director General of Agency of Industrial Science & TechnologyInventors: Kazuhiko Ishikawa, Ikuo Matsui, Hiroyasu Ishida, Yoshitsugu Kosugi, Katsuhiko Higuchi
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Patent number: 6001626Abstract: Disclosed are a thermophilic phospholipase having an optimum temperature range of 95 to 105.degree. C. which is useful in high-temperature degumming processes in oil refining process and high-temperature processing of phospholipids; and a method for producing a thermophilic phospholipase comprising culturing a microorganism capable of producing the phospholipase in a culture medium and collecting the phospholipase from the resultant culture.Type: GrantFiled: December 1, 1997Date of Patent: December 14, 1999Assignee: Director-General of Agency of Industrial Science and TechnologyInventors: Yoshitsugu Kosugi, Katsuhiko Higuchi, Kazuhiko Ishikawa, Ikuo Matsui, Joh Yong-Goe
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Patent number: 5292649Abstract: The reaction of a lipase upon a fatty acid is effected by an improved method which comprises bringing the lipase bonded at multiple points to an anion-exchange residue or a carrier and a carrier having a free anion-exchange group admixed therewith into contact with a reaction mixture containing an oily substance including the fatty acid and a water-soluble substance thereby forming an oily product and a water-soluble product in the reaction mixture and subsequently separating the two reaction products.Type: GrantFiled: July 9, 1992Date of Patent: March 8, 1994Assignee: Agency of Industrial Science & Technology, Ministy of International Trade & IndustryInventors: Yoshitsugu Kosugi, Hideo Suzuki, Akio Sato
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Patent number: 5010004Abstract: A water-soluble substrate and an oily substrate are continuously reacted with immobilized lipase in a reaction vessel having vertically maintained apart upper and lower conically-shaped regions, respectively, for separation of a water-soluble product and an oily product, a plurality of lipase reaction zones each containing immobilized lipase capable of being fluidized and an agitating means, and a plurality of intermediate separation zones for separation of an oily substance and a water-soluble substance. The lipase reaction zones and the intermediate separation zones are disposed alternately between the upper and lower conically-shaped separation regions. Boundaries between the lipase reaction zones and intermediate separation zones are pervious to liquid but impervious to the immobilized lipase.Type: GrantFiled: October 11, 1988Date of Patent: April 23, 1991Assignees: Agency of Industrial Science & Technology, Ministry of International Trade & IndustryInventors: Yoshitsugu Kosugi, Hideoki Tanaka, Hideo Suzuki, Masaru Shiraki
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Patent number: 4013512Abstract: A lipid hydrolyzing enzyme-containing substance is brought into contact with an insoluble carrier having a hydrophobic organic compound attached thereto in the form of a hydrophobic residue so that the lipid hydrolyzing enzyme is adsorbed by the hydrophobic residue attached to the insoluble carrier. Then, the lipid hydrolyzing enzyme adsorbed on the carrier is isolated by elution.Type: GrantFiled: September 18, 1974Date of Patent: March 22, 1977Assignee: Agency of Industrial Science & TechnologyInventors: Yoshitsugu Kosugi, Hideo Suzuki, Akira Kamibayashi