Patents by Inventor Yuki Takuma
Yuki Takuma 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: 11857360Abstract: Provided is a biological sound measurement device capable of smoothly performing tasks from measurement initiation to result confirmation, that includes a sound measurement unit including a contact surface configured to be brought into contact with the body surface of a subject, a gripping portion supporting the sound measurement unit and configured to be gripped by a measurer, and a display unit provided to the gripping portion and configured to display an analysis result of a biological sound measured by the sound measurement unit. The gripping portion is configured to be gripped by the measurer in a state in which an index finger of the measurer is placed on a back surface of the sound measurement unit, and the display unit is provided on a surface of the gripping portion on the body surface side in a state in which the contact surface is in contact with the body surface.Type: GrantFiled: July 8, 2021Date of Patent: January 2, 2024Assignee: OMRON HEALTHCARE CO., LTD.Inventors: Masayuki Fukutsuka, Katsuyoshi Morita, Kosuke Inoue, Nobuki Yakura, Seiji Fukunaga, Tsuyoshi Ogihara, Masahiko Yumoto, Yuki Takuma
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Publication number: 20210330282Abstract: Provided is a biological sound measurement device capable of retaining contact with the body surface in a favorable state and improving a measurement accuracy of a biological sound. A biological sound measurement device (1) includes a sound measurement unit (3) including a sound detector (33) configured to detect a biological sound, and a contact surface (30) configured to be brought into contact with the body surface (S) of a subject, a gripping portion (10) configured to be gripped by a measurer, and a coupling member (40) having a cylindrical tubular shape and elasticity and coupling the gripping portion (10) and the sound measurement unit (3). A wiring (SG) is inserted through a hollow portion of the coupling member (40).Type: ApplicationFiled: July 9, 2021Publication date: October 28, 2021Inventors: Tsuyoshi OGIHARA, Masahiko YUMOTO, Kosuke INOUE, Yuki TAKUMA
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Publication number: 20210330280Abstract: Provided is a biological sound measurement device capable of smoothly performing tasks from measurement initiation to result confirmation, that includes a sound measurement unit including a contact surface configured to be brought into contact with the body surface of a subject, a gripping portion supporting the sound measurement unit and configured to be gripped by a measurer, and a display unit provided to the gripping portion and configured to display an analysis result of a biological sound measured by the sound measurement unit. The gripping portion is configured to be gripped by the measurer in a state in which an index finger of the measurer is placed on a back surface of the sound measurement unit, and the display unit is provided on a surface of the gripping portion on the body surface side in a state in which the contact surface is in contact with the body surface.Type: ApplicationFiled: July 8, 2021Publication date: October 28, 2021Inventors: Masayuki FUKUTSUKA, Katsuyoshi MORITA, Kosuke INOUE, Nobuki YAKURA, Seiji FUKUNAGA, Tsuyoshi OGIHARA, Masahiko YUMOTO, Yuki TAKUMA
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Publication number: 20210330278Abstract: Provided is a biological sound measurement device to improve a measurement accuracy, that includes a sound measurement unit having a contact surface configured to be brought into contact with a body surface, and a gripping portion supporting the sound measurement unit and configured to be gripped by a measurer. The gripping portion is configured to be gripped in a state in which an index finger is placed in a recessed portion, the sound measurement unit includes a sound detector, a housing forming an accommodation space accommodating the sound detector and includes an opening, and a cover closing the opening from outside the accommodation space and forming a pressure-receiving region configured to receive pressure from the body surface. The contact surface is formed by a front surface of the cover, and the opening positioned on a straight line extending in a direction of a force applied from the index finger.Type: ApplicationFiled: July 9, 2021Publication date: October 28, 2021Inventors: Masayuki FUKUTSUKA, Katsuyoshi MORITA, Kosuke INOUE, Seiji FUKUNAGA, Tsuyoshi OGIHARA, Masahiko YUMOTO, Yuki TAKUMA
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Patent number: 6900298Abstract: A process for efficiently producing a nucleic acid derivative by condensing a specific nitrogen-containing heterocyclic compound such as a dinitrogen 6-membered heterocyclic compound or a trinitrogen 5-membered heterocyclic compound with a pentose using a less expensive and safe reagent. Namely, a process for producing a nucleic acid derivative by condensing a dinitrogen 6-membered heterocyclic compound or a trinitrogen 5-membered heterocyclic compound with a pentose in the presence of an iron halide.Type: GrantFiled: February 11, 2003Date of Patent: May 31, 2005Assignee: Mitsubishi Chemical CorporationInventors: Yuki Takuma, Kyoko Endo, Takeshi Murakami, Tomoko Maeda, Tomoko Sasaki, Youichi Matsumoto
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Publication number: 20040030139Abstract: A process for producing a compound represented by the following formula (IV): 1Type: ApplicationFiled: July 30, 2003Publication date: February 12, 2004Inventors: Mari Hara, Yuki Takuma, Manabu Katsurada, Akemi Hosokawa, Youichi Matsumoto, Yuzo Kasuga, Naoyuki Watanabe
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Publication number: 20030153745Abstract: A process for efficiently producing a nucleic acid derivative by condensing a specific nitrogen-containing heterocyclic compound such as a dinitrogen 6-membered heterocyclic compound or a trinitrogen 5-membered heterocyclic compound with a pentose using a less expensive and safe reagent. Namely, a process for producing a nucleic acid derivative by condensing a dinitrogen 6-membered heterocyclic compound or a trinitrogen 5-membered heterocyclic compound with a pentose in the presence of an iron halide.Type: ApplicationFiled: February 11, 2003Publication date: August 14, 2003Applicant: MITSUBISHI CHEMICAL CORPORATIONInventors: Yuki Takuma, Kyoko Endo, Takeshi Murakami, Tomoko Maeda, Tomoko Sasaki, Youichi Matsumoto
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Patent number: 5698697Abstract: 2-Cyanopiperazine represented by the following formula (1): ##STR1## or a salt thereof. The 2-cyanopiperazine can be produced by reacting a 2-halogenoacrylonitrile with ethylenediamine or by reacting a 2,3-dihalogenopropionitrile with ethylenediamine.The 2-cyanopiperazine is useful as an intermediate for medicaments, agricultural chemicals, etc., and optically active N-tert-butyl-2-piperazine carboxamide, which is useful as an intermediate in preparation of the HIV protease inhibitor indinavir, can be easily produced using the 2-cyanopiperazine.Type: GrantFiled: July 18, 1996Date of Patent: December 16, 1997Assignee: Mitsubishi Chemical CorporationInventors: Yuki Takuma, Yuzo Kasuga, Takeki Miyazaki, Yuji Mizuho, Ken Okamoto
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Patent number: 5370798Abstract: An agent for capturing metal ions, which consists essentially of a cyclic inulooligosaccharide having from 6 to 8 molecules of fructose bonded by .beta.-2,1 bonds to form a cyclic structure, wherein hydroxyl groups may all or partially be alkylated.Type: GrantFiled: September 29, 1993Date of Patent: December 6, 1994Assignee: Mitsubishi Kasei CorporationInventors: Takao Uchiyama, Naoshi Imaki, Yuki Takuma, Masato Aiura, Eri Hosono
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Patent number: 4904787Abstract: A method for producing a 2,4-dihydroxyquinoline derivative of the formula: ##STR1## wherein each of R.sup.1, R.sup.2, R.sup.3 and R.sup.4 is a hydrogen atom, a lower alkyl group, a lower alkoxy group or a halogen atom, and its tautomer, which comprises cyclizing an aryl malonic acid amide ester derivative of the formula: ##STR2## wherein R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are as defined above, and R.sup.5 is a lower alkyl group, by means of polyphosphoric acid.Type: GrantFiled: April 4, 1988Date of Patent: February 27, 1990Assignee: Mitsubishi Kasei CorporationInventors: Naoshi Imaki, Yuki Takuma, Mari Oishi
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Patent number: 4769480Abstract: There is provided a novel benzylamine derivative of the formula I: ##STR1## wherein R.sup.1 represents a hydrogen atom or a methyl group, X represents a hydrogen atom, a methyl group or a tosyl group, and Y represents a hydrogen atom, a methyl group or ##STR2## in which R.sup.2 and R.sup.3 being identical or different from each other represent independently a lower alkyl group.Type: GrantFiled: August 15, 1986Date of Patent: September 6, 1988Assignee: Mitsubishi Chemical Industries LimitedInventors: Yoshiharu Morita, Naoshi Imaki, Hisao Takayanagi, Tadashi Shirasaka, Tetsuro Shimpuku, Yuki Takuma, Mari Oishi
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Patent number: 4760145Abstract: A tetrahydroisoquinoline derivative represented by formula: ##STR1## wherein R.sup.1 represents hydrogen or methyl and X.sup.1, X.sup.2, Y.sup.1 and Y.sup.2 are defined as follows:(1) X.sup.1 represents --OH, ##STR2## or OR.sup.2 wherein R.sup.2 represents lower alkyl when X.sup.2, Y.sup.1 and Y.sup.2 represent hydrogen(2) X.sup.1 and X.sup.2 together form oxo (.dbd.O), when Y.sup.1 and Y.sup.2 represent hydrogen or(3) Y.sup.1 and Y.sup.2 together form oxo (.dbd.O), when X.sup.1 and X.sup.2 represent hydrogen which is useful as an intermediate in preparation of Cotarnine.Type: GrantFiled: August 28, 1986Date of Patent: July 26, 1988Assignee: Mitsubishi Chemical Industries LimitedInventors: Yoshiharu Morita, Naoshi Imaki, Hisao Takayanagi, Tadashi Shirasaka, Tetsuro Shimpuku, Yuki Takuma, Mari Oishi
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Patent number: 4746747Abstract: There is provided a novel anisole derivative represented by the following formula (I): ##STR1## wherein A to D are defined as follows: (1) A, B and C are each a hydrogen atom, and D represents --OH, a halogen atom, --CO.sub.2 R.sup.1 of which R.sup.1 represents a lower alkyl group, --SO.sub.2 R.sup.2 of which R.sup.2 represents a lower alkyl group, or ##STR2## or (2) A and C are each a hydrogen atom, B is --OH, and D represents --CO.sub.2 R.sup.3 of which R.sup.3 represents a lower alkyl group; or(3) A is a hydrogen atom, B and C form an oxo group .dbd.O together, and D represents --CO.sub.2 R.sup.4 of which R.sup.4 represents a lower alkyl group; or(4) B and C are each a hydrogen atom, D is a halogen atom, and A represents --CHO.Type: GrantFiled: August 28, 1986Date of Patent: May 24, 1988Assignee: Mitsubishi Chemical Industries LimitedInventors: Yoshiharu Morita, Naoshi Imaki, Hisao Takayanagi, Yuki Takuma, Tadashi Shirasaka