Patents by Inventor Fumio Kai
Fumio Kai 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: 9903500Abstract: A self-holding electromagnetic valve includes: a solenoid having a tubular guide part having the same center as a central axis extending in an axial direction; a axially movable element located radially inside the guide part; a cover housing the solenoid and the movable element, having a hole portion, and made of a magnetic material; a pin located at the hole portion and movable along with movement of the movable element; and a valve section provided outside the cover and opened/closed along with movement of the movable element and the pin. The solenoid has a cylindrical part with an inner circumferential surface that receives the guide part, tooth parts that extend radially outward from the cylindrical part and are made of a magnetic material, bobbin parts provided each tooth part, and coils wound around the bobbin parts.Type: GrantFiled: November 30, 2016Date of Patent: February 27, 2018Assignees: HONDA MOTOR CO., LTD., NIDEC TOSOK CORPORATIONInventors: Akira Fujita, Hiroaki Ue, Fumio Kai, Tomohiro Yasuda
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Patent number: 9885424Abstract: An electromagnetic valve includes: a solenoid having a tubular guide part having the same center as a central axis extending in an axial direction; a movable element disposed inside the guide part and movable in the axial direction; a cover housing the solenoid and the movable element, defining a hole portion, and made of a magnetic material; a pin located at the hole portion and movable along with movement of the movable element; and a valve section provided outside the cover and opened/closed along with movement of the movable element and the pin. The solenoid has a core that surrounds an outer side of the movable element in the radial direction, and a coil that magnetizes the core. The core has an annular ring part surrounding the outer side of the movable element, and tooth parts protruding radially outward from the ring part on which the coil is mounted.Type: GrantFiled: November 30, 2016Date of Patent: February 6, 2018Assignees: Honda Motor Co., Ltd., Nidec Tosok CorporationInventors: Akira Fujita, Hiroaki Ue, Fumio Kai, Tomohiro Yasuda
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Publication number: 20170159843Abstract: An electromagnetic valve includes: a solenoid having a tubular guide part having the same center as a central axis extending in an axial direction; a movable element disposed inside the guide part and movable in the axial direction; a cover housing the solenoid and the movable element, defining a hole portion, and made of a magnetic material; a pin located at the hole portion and movable along with movement of the movable element; and a valve section provided outside the cover and opened/closed along with movement of the movable element and the pin. The solenoid has a core that surrounds an outer side of the movable element in the radial direction, and a coil that magnetizes the core. The core has an annular ring part surrounding the outer side of the movable element, and tooth parts protruding radially outward from the ring part on which the coil is mounted.Type: ApplicationFiled: November 30, 2016Publication date: June 8, 2017Inventors: Akira Fujita, Hiroaki Ue, Fumio Kai, Tomohiro Yasuda
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Publication number: 20170159844Abstract: A self-holding electromagnetic valve includes: a solenoid having a tubular guide part having the same center as a central axis extending in an axial direction; a axially movable element located radially inside the guide part; a cover housing the solenoid and the movable element, having a hole portion, and made of a magnetic material; a pin located at the hole portion and movable along with movement of the movable element; and a valve section provided outside the cover and opened/closed along with movement of the movable element and the pin. The solenoid has a cylindrical part with an inner circumferential surface that receives the guide part, tooth parts that extend radially outward from the cylindrical part and are made of a magnetic material, bobbin parts provided each tooth part, and coils wound around the bobbin parts.Type: ApplicationFiled: November 30, 2016Publication date: June 8, 2017Inventors: Akira Fujita, Hiroaki Ue, Fumio Kai, Tomohiro Yasuda
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Patent number: 9416892Abstract: An electromagnetic valve includes a pressing member fixed farther towards an electromagnetic movable section side than a valve chamber in a nozzle. The pressing member is fixed to a plunger farther towards the side where the plunger is pressed by the pressing member than a position where the pressing member is fixed to the nozzle. Thus, a magnetic circuit defined by magnetic flux that is generated from a magnet is prevented from being located at a portion not related to an attractive force between a core and the plunger such that it is possible to effectively utilize the magnetic flux as an attractive force between the core and the plunger.Type: GrantFiled: October 20, 2014Date of Patent: August 16, 2016Assignee: NIDEC TOSOK CORPORATIONInventors: Fumio Kai, Tomohiro Yasuda
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Publication number: 20150129785Abstract: An electromagnetic valve includes a pressing member fixed farther towards an electromagnetic movable section side than a valve chamber in a nozzle. The pressing member is fixed to a plunger farther towards the side where the plunger is pressed by the pressing member than a position where the pressing member is fixed to the nozzle. Thus, a magnetic circuit defined by magnetic flux that is generated from a magnet is prevented from being located at a portion not related to an attractive force between a core and the plunger such that it is possible to effectively utilize the magnetic flux as an attractive force between the core and the plunger.Type: ApplicationFiled: October 20, 2014Publication date: May 14, 2015Inventors: Fumio KAI, Tomohiro YASUDA
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Patent number: 4758557Abstract: Cephalosporin compounds represented by the following formula (I) and pharmaceutically acceptable salts thereof have a broad bactericidal spectrum against various pathogenic bacteria including Psuedomonas aeruginosa and are useful as bactericidal remedies for pathogenic diseases of human and animals: ##STR1## wherein A represents an unsubstituted or substituted pyridylthio group of a formula (I-1); ##STR2## or an unsubstituted or substituted pyridiniumthio group of a formula (I-2): ##STR3## or an unsubstituted or substituted pyridinium group of a formula (I-3); ##STR4## or a 5- or 6-membered heterocyclicthio or bicycloheterocyclicthio group of a formula (I-4):--S--Het (I-4).Type: GrantFiled: June 9, 1986Date of Patent: July 19, 1988Assignee: Meiji Seika Kaisha, Ltd.Inventors: Takashi Tsuruoka, Katsuyoshi Iwamatsu, Kiyoaki Katano, Hiroko Ogino, Ryoichi Okamoto, Takashi Yoshida, Masaji Sezaki, Fumio Kai, Shigeharu Inoue, Shinichi Kondo
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Patent number: 4647572Abstract: Triiodoallyl- or iodopropargyl-substituted tetrazole compounds which are prepared by reacting substituted tetrazole compound with reactive derivatives of corresponding triiodoallyl alcohol or iodopropargyl alcohol or by iodinating propargyltetrazole compounds, as well as antibacterial and antifungal compositions for medicinal, agricultural and industrial fields which contain as active ingredient said tetrazole compounds.Type: GrantFiled: October 25, 1983Date of Patent: March 3, 1987Assignee: Meiji Seika Kaisha, Ltd.Inventors: Shigeharu Inouye, Masao Koyama, Keinosuke Miyauchi, Takashi Tsuruoka, Fumio Kai, Kuniomi Matsumoto, Taro Niida, Eiichi Akita
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Patent number: 4563472Abstract: Triiodoallyl- or iodopropargyl-substituted heterocyclic aromatic compounds which can be prepared by reacting unsubstituted- or substituted nitrogen-containing heterocyclic compounds with corresponding iodine containing alcohol reactive derivatives in the presence of a base in an inert organic solvent. These new heterocyclic aromatic compounds have remarkable antibacterial and antifungal activities and are useful as antibacterial and antifungal agents in medicinal, agricultural and industrial fields.Type: GrantFiled: October 6, 1982Date of Patent: January 7, 1986Assignee: Meiji Seika Kaisha, Ltd.Inventors: Shigeharu Inouye, Taro Niida, Keinosuke Miyauchi, Kuniomi Matsumoto, Eiichi Akita, Masao Koyama, Fumio Kai, Takashi Tsuruoka
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Patent number: 4560750Abstract: Disclosed is a novel cephem compound represented by the formula: ##STR1## wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4 and Y are as defined in the specification, which is a useful intermediate for synthesizing various cephalosporin antibiotics having a methoxy group at the 7.alpha.-position thereof. Also disclosed is a process for preparing the same.Type: GrantFiled: April 9, 1982Date of Patent: December 24, 1985Assignee: Meiji Seika Kaisha Ltd.Inventors: Kunio Atsumi, Kiyoaki Katano, Fumio Kai, Ken Nishihata, Eiichi Akita
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Patent number: 4485235Abstract: Disclosed is a novel cephem compound represented by the formula: ##STR1## wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4 and n are as defined in the specification, which is a useful intermediate for synthesizing various cephalosporin antibiotics having a methoxy group at the 7.alpha.-position thereof. Also disclosed is a process for preparing the same.Type: GrantFiled: April 30, 1982Date of Patent: November 27, 1984Assignee: Meiji Seika Kaisha Ltd.Inventors: Kiyoaki Katano, Kunio Atsumi, Fumio Kai, Ken Nishihata, Eiichi Akita
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Patent number: 4258184Abstract: Novel cephalosporin derivatives having formulae (V) and (III): ##STR1## wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.8 and A are defined as in the specification.Type: GrantFiled: March 13, 1979Date of Patent: March 24, 1981Assignee: Meiji Seika Kaisha Ltd.Inventors: Fumio Kai, Takashi Tsuruoka, Osamu Makabe, Shigeharu Inouye, Hitoshi Ikeda, Yuzo Kazuno, Shokichi Nakajima, Shigeo Seki, Taro Niida
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Patent number: 4256744Abstract: This invention relates to novel compounds of the general formula (I): ##STR1## wherein A represents ##STR2## in which B represents a ring-forming residue of a 5- or 6-membered carbon-containing heterocycling ring containing at least one nitrogen atom and which may further contain an oxygen atom in the ring, and R.sub.1 and R.sub.Type: GrantFiled: February 2, 1979Date of Patent: March 17, 1981Assignee: Meiji Seika Kaisha, Ltd.Inventors: Shigeo Seki, Yashuharu Sekizawa, Fumio Kai, Yukio Suzuki, Michiaki Iwata, Tetsuro Watanabe
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Patent number: 4141790Abstract: Compounds are provided having the general formula I: ##STR1## wherein X represents an hydroxyl group, an acetoxy group or a thiosulfuric acid residue. The formula I compounds are prepared from compounds of the general formula II: ##STR2## wherein R.sub.1 represents hydrogen, a lower alkanoyl group, an arylalkanoyl group, an alkoxycarbonyl group, a lower haloalkoxycarbonyl group, a substituted or unsubstituted aroyl group, a N-arylcarbamoyl group of a substituted or unsubstituted aryl group; R.sub.2 either represents hydrogen or, together with the ##STR3## group, represents a phthalimido group; and X represents an hydroxyl group, an acetoxy group or a thiosulfuric acid residue, or their metal salts or their salts with organic bases, by causing the culture of a cephalosporin C acylase-producing strain of a microorganism, especially a mold, fungus, or the secondary preparation therefrom, to act on the latter compounds II in the presence of an aqueous medium.Type: GrantFiled: May 12, 1977Date of Patent: February 27, 1979Assignee: Meiji Seika Kaisha Ltd.Inventors: Tomizo Niwa, Chuhei Nojiri, Hitoshi Goi, Shinji Miyado, Fumio Kai, Shigeo Seki, Yujiro Yamada, Taro Niida
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Patent number: 4113944Abstract: A cephalosporin compound represented by the formula (I) or (I') ##STR1## wherein R.sup.1 represents a phenyl group, a 2-thienyl group or a phenoxy group; R.sup.2 represents a hydrogen atom, an alkyl group having 1 to 4 carbon atoms which may be substituted with a phenyl group, an alkoxy group having 1 to 4 carbon atoms or a halogen atom, or a phenyl group which may be substituted with one or two groups selected from the group consisting of a halogen atom, a nitro group, an alkyl group having 1 to 4 carbon atoms and an alkoxy group having 1 to 4 carbon atoms; R.sup.Type: GrantFiled: June 19, 1975Date of Patent: September 12, 1978Assignee: Meiji Seika Kaisha, Ltd.Inventors: Fumio Kai, Toshinori Saito, Shigeo Seki, Toyoaki Kawasaki
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Patent number: 3932668Abstract: Novel alkyl 2,3,3-triiodoallyl ethers useful as disinfectants are provided by an addition reaction of alkyl-3-iodo-2-propinyl ethers with iodine. The starting alkyl-3-iodo-2-propinyl ethers can be prepared by a new process comprising an alkylation of propargyl alcohol with an alkyl sulfate or alkyl sulfonate in the presence of an alkali, followed by monoiodization of the resulting alkyl-2-propinyl ether. This invention also provides a composition comprising alkyl 2,3,3-triiodoalkyl ethers useful as a poultry feed additive having growth increasing effects and for treating swine scours.Type: GrantFiled: December 10, 1974Date of Patent: January 13, 1976Assignee: Meiji Seika Kaisha, Ltd.Inventors: Yasuharu Sekizawa, Shigeo Seki, Bunzo Nomiya, Takemi Koeda, Fumio Kai, Naotoshi Akai, Yasushi Yusa, Fuguaki Fukuyasu