Patents by Inventor Masayoshi Onishi
Masayoshi Onishi 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: 8124784Abstract: Disclosed is a metal complex containing a composition represented by the following formula (a). [(PdII)2(MI)2(X)2(L)4(L?)2] (In the formula (a), MI represents AgI, AuI or CuI; X represents Cl, Br or I; L represents a group represented by formula (1); L? represents a group represented by formula (2); two MIs may be the same as or different from each other; four Ls may be the same as or different from each other; and two L's may be the same as or different from each other.) (In the formulae (1) and (2), R1, R2 and R3 independently represent a hydrogen atom, a halogen atom, a hydroxy group, an optionally substituted alkyl group, an optionally substituted aryl group or an optionally substituted monovalent heterocyclic group.Type: GrantFiled: February 12, 2009Date of Patent: February 28, 2012Assignees: Nagasaki University, Sumitomo Chemical Company, LimitedInventors: Keisuke Umakoshi, Kazutoyo Kimura, Masayoshi Onishi, Shoji Ishizaka, Noboru Kitamura, Satoshi Mikami
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Patent number: 7973167Abstract: A novel luminescent metal complex comprises a composition of [(PtII)2(AuI)2(MI)2(L)8] where MI denotes AgI or CuI, and L denotes a structure represented by the formula (1)Type: GrantFiled: March 5, 2008Date of Patent: July 5, 2011Assignee: Nagasaki UniversityInventors: Keisuke Umakoshi, Keizo Saito, Masayoshi Onishi, Shoji Ishizaka, Noboru Kitamura
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Patent number: 7893611Abstract: There is provided a novel luminescent metal complex. A metal complex having a composition of [(PtII)2(MI)2(X)2(L)4(LH)2], where MI denotes AgI, AuI or CuI, X denotes Cl, Br or I, L denotes a structure represented by the formula (1), and LH denotes a structure represented by the formula (2).Type: GrantFiled: November 1, 2007Date of Patent: February 22, 2011Assignee: Nagasaki UniversityInventors: Keisuke Umakoshi, Seiji Akatsu, Masayoshi Onishi, Shoji Ishizaka, Noboru Kitamura
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Publication number: 20100311982Abstract: Disclosed is a metal complex containing a composition represented by the following formula (a). [(PdII)2(MI)2(X)2(L)4(L?)2] (In the formula (a), MI represents AgI, AuI or CuI; X represents Cl, Br or I; L represents a group represented by formula (1); L? represents a group represented by formula (2); two MIs may be the same as or different from each other; four Ls may be the same as or different from each other; and two L's may be the same as or different from each other.) (In the formulae (1) and (2), R1, R2 and R3 independently represent a hydrogen atom, a halogen atom, a hydroxy group, an optionally substituted alkyl group, an optionally substituted aryl group or an optionally substituted monovalent heterocyclic group.Type: ApplicationFiled: February 12, 2009Publication date: December 9, 2010Applicants: NAGASAKI UNIVERSITY, SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Keisuke Umakoshi, Kazutoyo Kimura, Masayoshi Onishi, Shoji Ishizaka, Noboru Kitamura, Satoshi Mikami
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Publication number: 20100105918Abstract: A novel luminescent metal complex comprises a composition of [(PtII)2(AuI)2(MI)2(L)8] where MI denotes AgI or CuI, and L denotes a structure represented by the formula (1)Type: ApplicationFiled: March 5, 2008Publication date: April 29, 2010Applicant: Nagasaki UniversityInventors: Keisuke Umakoshi, Keizo Saito, Masayoshi Onishi, Shoji Ishizaka, Noboru Kitamura
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Patent number: 7673805Abstract: A mini card adapter for removably holding and fixing a mini card in a secure manner is provided. The mini card adapter holds a mini card having the same thickness as the standard card and outline dimensions smaller than those of the standard card. The mini card comprises a reference wall having the same thickness as the standard card and a bulging section formed on the top surface of the reference wall. In the reference wall, a card pocket for is formed for loading therein the mini card. The land section is formed in a region corresponding to the emboss section of the standard card, and a part of the land section bulges over the card pocket. As a result, an eaves wall for supporting one side of the mini card is formed. The eaves wall has a boss which fits in a hole formed in the mini card. A receiving nail for receiving the periphery of the mini card in corporation with the eaves wall is provided on the peripheral lower surface of the card pocket.Type: GrantFiled: March 10, 2005Date of Patent: March 9, 2010Assignees: JCB Co., Ltd, Maxell Seiki, Ltd.Inventors: Masayoshi Onishi, Yasuaki Wakizaka, Yoshitaka Matsuda, Koichi Ozaki
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Publication number: 20100010231Abstract: There is provided a novel luminescent metal complex. A metal complex having a composition of [(PtII)2(MI)2(X)2(L)4(LH)2], where MI denotes AgI, AuI or CuI, X denotes Cl, Br or I, L denotes a structure represented by the formula (1), and LH denotes a structure represented by the formula (2).Type: ApplicationFiled: November 1, 2007Publication date: January 14, 2010Applicant: Nagasaki UniversityInventors: Keisuke Umakoshi, Seiji Akatsu, Masayoshi Onishi, Shoji Ishizaka, Noboru Kitamura
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Publication number: 20090198069Abstract: An object of the present invention is to provide a novel metal complex. A metal complex having a composition of [(PtII)2(MI)4(L)8], where MI is H+, AgI, AuI or CuI, and L is a compound represented by the following chemical formula. A metal complex having a composition of [(PtII)2(MI)4(X)2(L)6], where MI is AgI, AuI or CuI, X is Cl?, Br? or I?, and L is a compound represented by the following chemical formula. In the formula, R1, R2 and R3 are independently a hydrogen atom, a chlorine atom, a bromine atom, an iodine atom, a hydroxyl group, a phenyl group, a trifluoromethylphenyl group, a pentafluorophenyl group, a naphthyl group, a methyl group, an ethyl group, an i-propyl group, a t-butyl group, a trifluoromethyl group, a hydroxymethyl group or a hydroxyethyl group. At least one of R1, R2 and R3 in the formula is not a hydrogen atom.Type: ApplicationFiled: March 24, 2006Publication date: August 6, 2009Applicant: NAGASAKI UNIVERSITY, NATIONAL UNIVERSITY CORPORATIInventors: Keisuke Umakoshi, Takashi Kojima, Seiji Akatsu, Masayoshi Onishi, Shoji Ishizaka, Noboru Kitamura
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Publication number: 20070278317Abstract: A mini card adapter for removably holding and fixing a mini card in a secure manner is provided. The mini card adapter holds a mini card having the same thickness as the standard card and outline dimensions smaller than those of the standard card. The mini card comprises a reference wall 8 having the same thickness as the standard card and a bulging section 9 formed on the top surface of the reference wall 8. In the reference wall 8, a card pocket 10 for is formed for loading therein the mini card 1. The land section 9 is formed in a region Z corresponding to the emboss section of the standard card, and a part of the land section 9 bulges over the card pocket 10. As a result, an eaves wall 15 for supporting one side of the mini card 1 is formed. The eaves wall 15 has a boss 16 which fits in a hole 3 formed in the mini card 1. A receiving nail 17 for receiving the periphery of the mini card 1 in corporation with the eaves wall 15 is provided on the peripheral lower surface of the card pocket 10.Type: ApplicationFiled: March 10, 2005Publication date: December 6, 2007Applicants: JCB CO., LTD., MAXELL SEIKI, LTD.Inventors: Masayoshi Onishi, Yasuaki Wakizaka, Yoshitaka Matsuda, Koichi Ozaki
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Publication number: 20070183694Abstract: First, an axial clearance is measured. Next, lubricating oil is filled between a sleeve and a shaft, and the shaft is disposed such that a flange is positioned above a shank. Further, in a state where the shaft rotates at a rated rotation speed (a predetermined rotation speed), an axial clearance b between the flange and a surface facing a receiving surface of the flange through a flange housing space in the sleeve is measured. Finally, a dynamic pressure bearing satisfying the condition 0.3?b/a?0.55 is judged as a dynamic pressure bearing not having leakage of lubricating oil and abnormal abrasion.Type: ApplicationFiled: January 22, 2007Publication date: August 9, 2007Inventors: Takeharu Ogimoto, Masayoshi Onishi, Takeshi Takahashi, Yasuo Takamura, Shinji Matsue
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Patent number: 7189766Abstract: The printing ink of the present invention is characterized by containing a photo-curable high polymer precursor, and a photopolymerization initiator, and containing 3 to 8 parts by weight of inorganic fine particles having a mean particle size of 0.1 ?m or less to 100 parts by weight of the high polymer precursor. Moreover, the printing ink of the present invention is characterized by having a viscosity at a shear rate of 5 (l/s) of 8 to 75 (Pa·s), a viscosity at a shear rate of 20 (l/s) of 3 to 25 (Pa·s), and a thixotropic index value of 1.5 to 3.5. As a result of using this printing ink, letters, figures, symbols, graphics, etc., having a thickness of 0.2 mm or more can be printed rapidly without affecting the printed base material.Type: GrantFiled: November 28, 2001Date of Patent: March 13, 2007Assignees: Toppan Printing Co., Ltd., Maxell Seiki, Ltd.Inventors: Masashi Takahashi, Yoshie Arai, Masayoshi Onishi, Hiroshi Okubo, Yoshinari Yasuda
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Publication number: 20040054030Abstract: The printing ink of the present invention is characterized by containing a photo-curable high polymer precursor, and a photopolymerization initiator, and containing 3 to 8 parts by weight of inorganic fine particles having a mean particle size of 0.1 &mgr;m or less to 100 parts by weight of the high polymer precursor. Moreover, the printing ink of the present invention is characterized by having a viscosity at a shear rate of 5 (l/s) of 8 to 75 (Pa·s), a viscosity at a shear rate of 20 (l/s) of 3 to 25 (Pa·s), and a thixotropic index value of 1.5 to 3.5. As a result of using this printing ink, letters, figures, symbols, graphics, etc., having a thickness of 0.2 mm or more can be printed rapidly without affecting the printed base material.Type: ApplicationFiled: May 27, 2003Publication date: March 18, 2004Inventors: Masashi Takahashi, yoshi Arai, Masayoshi Onishi, Hiroshi Okubo, Yoshinari Yasuda
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Patent number: 6191366Abstract: A board for an IC card includes a main body in the shape of a plate. A recess is formed in the main body for receiving and adhering a component therein. The recess includes a bottom wall integrated as one body with the main body, and an adhesion section for adhering the component. A wall of the adhesion section is an uneven surface. Ribs may be provided which extend from an inner side of the recess to contact the component.Type: GrantFiled: September 25, 1997Date of Patent: February 20, 2001Assignees: Hitachi Maxell, Ltd., Maxell Seiki, Ltd.Inventors: Masayoshi Onishi, Seiji Kegai, Koichi Ozaki, Kaname Tamada, Hiroyoshi Takagi
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Patent number: 6000850Abstract: The invention provides a dynamic pressure bearing capable of generating enough dynamic pressure even with the use of a porous material. Dynamic pressure grooves at an inner circumferential surface of a sleeve made of porous material are formed by rolling process. Voids of the porous material at a surface of the dynamic pressure grooves are crushed by this rolling process, making the dynamic pressure grooves airtight. Further, the inner circumferential surface at which the dynamic pressure grooves are formed is subject to a sizing process, by which a bearing surface of the sleeve is crushed so that substantially no voids are present.Type: GrantFiled: April 8, 1998Date of Patent: December 14, 1999Assignee: Koyo Seiko Co., Ltd.Inventors: Takeshi Takahashi, Masayoshi Onishi
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Patent number: 5725819Abstract: A plate for an IC card having recesses for mounting components is formed by injection molding of plastics. First, a mold for forming recesses for mounting components is formed to have a slide core. After molten resin is filled in a cavity, the slide core is forced to penetrate into the cavity. Thus, the molten resin is removed by the slide core so as to form the recesses and walls. Because the resin has been filled beforehand, even if the wall is thin, the filling process is carried out normally, and the walls can be formed without increasing an injection pressure.Type: GrantFiled: July 21, 1995Date of Patent: March 10, 1998Assignees: Hitachi Maxell, Ltd., Maxell Seiki, Ltd.Inventors: Masayoshi Onishi, Seiji Kegai, Koichi Ozaki, Kaname Tamada, Hiroyoshi Takagi
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Patent number: 5472283Abstract: A dynamic pressure bearing has a cylindrical configuration and includes dynamic pressure generating grooves on its inner peripheral surface. The bearing which is injection-molded is made of a material consisting principally of a polyphenylene sulfide resin including glass fibers. Furthermore, the bearing has an outside diameter R and an inside diameter r set such that a ratio R/r of the outside diameter R to the inside diameter r falls within a range of 1.2.ltoreq.R/r.ltoreq.2.5. The bearing also has an axial length L satisfying L.ltoreq.3r.Type: GrantFiled: November 21, 1994Date of Patent: December 5, 1995Assignee: Koyo Seiko Co., Ltd.Inventors: Takeshi Takahashi, Masayoshi Onishi
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Patent number: 5415476Abstract: In a dynamic pressure bearing having a sleeve and a shaft fitted in the sleeve, dynamic pressure generating grooves are formed on an outer cylindrical surface of the shaft. The dynamic pressure generating grooves consist of first oblique grooves disposed in a first cylindrical zone of the outer cylindrical surface, second oblique grooves disposed in a second cylindrical zone spaced from the first cylindrical zone in an axial direction, and cross grooves (or generally X-shaped grooves) disposed in an intermediate cylindrical zone between the first and second cylindrical zones. The first oblique grooves are oblique in a direction with respect to a generating line of the cylindrical surface and the second oblique grooves are oblique in a direction opposite to the direction in which the first oblique grooves are oblique.Type: GrantFiled: March 25, 1994Date of Patent: May 16, 1995Assignee: Koyo Seiko Co., Ltd.Inventor: Masayoshi Onishi
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Patent number: 5403098Abstract: A hydrodynamic bearing device incorporates a relatively rotatable shaft 1 and a sleeve 2 internally sealed with the shaft 1. A groove for generating dynamic pressure is formed on an external circumferential surface of the shaft 1 or on internal circumferential surface of the sleeve 2. A circumferential groove 1a is formed at one end of the shaft 1 external to the bearing. An annular sealing plate 3 is secured to the sleeve 2 and interegagging with the shaft 1 external to the bearing and the circumferential groove 1a. A labyrinth is formed between the inner-diametric domain of the sealing plate 3. An annular recessed domain 2c is defined by internal circumferential surface of the sleeve 2 and the sealing plate 3 at a position substantially opposite the circumferential groove 1a. An oil-pooling space 4 thereby formed by the shaft 1, the circumferential groove 1a, the sleeve 2, the sealing plate 3, and the annular recessed domain 2c.Type: GrantFiled: September 16, 1993Date of Patent: April 4, 1995Assignee: Koyo Seiko Co., Ltd.Inventors: Hiroyoshi Yasui, Masayoshi Onishi
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Patent number: 5398493Abstract: There is provided a spindle device for use in a spinning machine which produces little noise, which can eliminate the need for a rotational drive mechanism for a tubular spindle, for which bearing life is prolonged, and which can prevent waste threads from invading inside the bearings. A tubular spindle accommodated in a housing is rotatably supported by static-pressure pneumatic bearings. A cap, having nozzles and forming a spinning stream of air therein with compressed air blown off through the nozzles, is disposed at the tip portion of the tubular spindle. The tubular spindle radially supported by a film of air blown out through the static-pressure pneumatic bearings is rotated by the spinning stream of compressed air formed in the cap.Type: GrantFiled: July 27, 1993Date of Patent: March 21, 1995Assignee: Koyo Seiko Co., Ltd.Inventors: Masayoshi Onishi, Takeshi Takahashi
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Patent number: 5356226Abstract: Bearing sleeves of dynamic pressure bearings are adjustably supported on mounting sleeves by flexible connecting portions. The center axes of the bearing sleeves are thus finely adjusted so as to coincide with the center axis of the shaft 3. The concentricity of the bearing sleeves with respect to the shaft 3 can then be enhanced without requiring any high-precision machining.Type: GrantFiled: April 8, 1993Date of Patent: October 18, 1994Assignee: Koyo Seiko Co., Ltd.Inventors: Masayoshi Onishi, Takeshi Takahashi