Patents by Inventor Hidenari Tsunemi
Hidenari Tsunemi 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: 7217114Abstract: A resin roller (10) is produced by disposing a core body (21) in a forming metal mold (1) having a cylindrical metal mold (13) and core supporting members (14) furnished at both edge parts of the cylindrical metal mold (13) as well as causing the core supporting members (14) to hold said both edge parts, and pouring a forming resin into the metal mold and solidifying it. The resin roller (10) has the core body (21) of the same outer diameter over a full length and a cylindrical resin-formed body (12), sealing members (24, 26) are furnished around the core body (21) in the vicinity of both edge parts of the resin-formed body (12), and the core body (21) is disposed such that the sealing members (24, 26) contact edge faces (14a) at sides of a roller forming space of the core supporting members (14).Type: GrantFiled: April 5, 2005Date of Patent: May 15, 2007Assignee: Kaneka CorporationInventors: Hiroshi Ohgoshi, Toshiyuki Komatsu, Koji Sezaki, Hidenari Tsunemi, Kenji Kobayashi
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Publication number: 20060088623Abstract: A resin roller (10) is produced by disposing a core body (21) in a forming metal mold (1) having a cylindrical metal mold (13) and core supporting members (14) furnished at both edge parts of the cylindrical metal mold (13) as well as causing the core supporting members (14) to hold said both edge parts, and pouring a farming resin into the metal mold and solidifying it. The resin roller (10) has the core body (21) of the same outer diameter over a full length and a cylindrical resin-formed body (12), sealing members (24, 26) are furnished around the core body (21) in the vicinity of both edge parts of the resin-formed body (12), and the core body (21) is disposed such that the sealing members (24, 26) contact edge faces (14a) at sides of a roller forming space of the core supporting members (14).Type: ApplicationFiled: December 9, 2005Publication date: April 27, 2006Applicant: KANEKA CORPORATIONInventors: Hiroshi Ohgoshi, Toshiyuki Komatsu, Koji Sezaki, Hidenari Tsunemi, Kenji Kobayashi
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Publication number: 20050238756Abstract: A resin roller (10) is produced by disposing a core body (21) in a forming metal mold (1) having a cylindrical metal mold (13) and core supporting members (14) furnished at both edge parts of the cylindrical metal mold (13) as well as causing the core supporting members (14) to hold said both edge parts, and pouring a forming resin into the metal mold and solidifying it. The resin roller (10) has the core body (21) of the same outer diameter over a full length and a cylindrical resin-formed body (12), sealing members (24, 26) are furnished around the core body (21) in the vicinity of both edge parts of the resin-formed body (12), and the core body (21) is disposed such that the sealing members (24, 26) contact edge faces (14a) at sides of a roller forming space of the core supporting members (14).Type: ApplicationFiled: April 5, 2005Publication date: October 27, 2005Inventors: Hiroshi Ohgoshi, Toshiyuki Komatsu, Koji Sezaki, Hidenari Tsunemi, Kenji Kobayashi
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Patent number: 6953421Abstract: An electrophotography roller incorporated in an image creating device by the electrophotography comprising a conductive shaft disposed along the center axis, a conductive elastic layer around the shaft, a surface layer on the conductive elastic layer formed concentrically. The JIS A hardness of the conductive elastic layer is 30° or less. The shear modulus of the conductive elastic layer measured in viscoelasticity under the condition of 20° C., 60% PH and 0.1 Hz is 4 105 Pa or more. The width of contact of the roller with another member is sufficiently ensured even under a low pressing pressure. The compression residual strain is small even after the roller is pressed against another member for a long time. If the roller is used as a development roller, a sharp image with less density unevenness due to the residual strain is created.Type: GrantFiled: December 13, 2000Date of Patent: October 11, 2005Assignee: Kaneka CorporationInventors: Hidenari Tsunemi, Jun Kamite, Keizo Asaoka, Kenji Kobayashi
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Patent number: 6915570Abstract: A resin roller (10) is produced by disposing a core body (21) in a forming metal mold (1) having a cylindrical metal mold (13) and core supporting members (14) furnished at both edge parts of the cylindrical metal mold (13) as well as causing the core supporting members (14) to hold the both edge parts, and pouring a forming resin into the metal mold and solidifying it. The resin roller (10) has the core body (21) of the same outer diameter over a full length and a cylindrical resin-formed body (12), sealing members (24, 26) are furnished around the core body (21) in the vicinity of both edge parts of the resin-formed body (12), and the core body is disposed such that the sealing members (24, 26) contact edge faces (14a) at sides of a roller forming space of the core supporting members (14).Type: GrantFiled: May 17, 2000Date of Patent: July 12, 2005Assignee: Kaneka CorporationInventors: Hiroshi Ohgoshi, Toshiyuki Komatsu, Koji Sezaki, Hidenari Tsunemi, Kenji Kobayashi
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Publication number: 20040030032Abstract: The technique of preparing a semiconductive rubber by adding a conductivity imparting agent to resin matrix is so general but controlling the exhibiting conductive properties to a semiconductive range is difficult and in the technique of imparting conductivity by using an electronic conductive agent such as carbon black, uniform dispersion within the system is difficult and this often causes the problems of the sample fluctuation of the electric properties and voltage dependency of the obtained semiconductive rubber. The semiconductive resin composition of the present invention comprises (A) an oxyalkylene polymer having at least one hydrosilylizable alkenyl group in each molecule, (B) a compound having at least two hydrosilyl groups in each molecule, (C) a hydrosilylizing catalyst, and (D) an ionic conductivity imparting agent or (E) a nonionic surfactant.Type: ApplicationFiled: June 6, 2003Publication date: February 12, 2004Inventors: Takao Manabe, Keizo Asaoka, Nagahiro Masuda, Hidenari Tsunemi
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Publication number: 20030119639Abstract: A curable composition which comprises as essential ingredients (A) an organic polymer having per molecule at least one alkenyl group capable of undergoing hydrosilylation, (B) a compound having at least two hydrosilyl groups per molecule, (C) a hydrosilylation catalyst, (D) carbon black, (E) at least one compound selected from the group consisting of epoxidized compounds, acid anhydride compounds, and ester compounds, and (F) an organotitanium compound and/or an organoaluminum compound. In the composition, the carbon black serving as a conductivity imparter has been surface-treated with the ingredients (E) and (F) by the integral blending method. The conductive material obtained by heat-curing the curable composition has regulated conductivity.Type: ApplicationFiled: August 5, 2002Publication date: June 26, 2003Inventors: Takao Manabe, Jun Kamite, Hidenari Tsunemi
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Publication number: 20030022775Abstract: An electrophotography roller incorporated in an image creating device by the electrophotography comprising a conductive shaft disposed along the center axis, a conductive elastic layer around the shaft, a surface layer on the conductive elastic layer formed concentrically. The JIS A hardness of the conductive elastic layer is 30° or less. The shear modulus of the conductive elastic layer measured in viscoelasticity under the condition of 20° C., 60% PH and 0.1 Hz is 4 105 Pa or more. The width of contact of the roller with another member is sufficiently ensured even under a low pressing pressure. The compression residual strain is small even after the roller is pressed against another member for a long time. If the roller is used as a development roller, a sharp image with less density unevenness due to the residual strain is created.Type: ApplicationFiled: June 13, 2002Publication date: January 30, 2003Inventors: Hidenari Tsunemi, Jun Kamite, Keizo Asaoka, Kenji Kobayashi
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Patent number: 6320010Abstract: By incorporating (A) a saturated hydrocarbon polymer having more than one alkenyl group capable of being hydrosilylated in each molecule and having a molecular weight of 2,000 to 50,000, (B) a component comprising a compound containing more than two silicon atom-bound hydrogen atoms, on average, in each molecule, (C) a compound having, within the molecule, one alkenyl group capable of being hydrosilylated, (D) a compound having, within the molecule, at least two alkenyl groups capable of being hydrosilylated and having a molecular weight less than 2,000, and (E) a hydrosilylation catalyst, a composition having good mechanical characteristics, a high gel fraction and a small heating loss can be obtained. As a result, the invention can provide a composition to secure the uniformity within a wide range of selection not depending on its viscosity, because it is markedly relaxed the restriction on SiH-containing compounds that are curing agents possibly becoming a cause of said insufficient curing.Type: GrantFiled: March 27, 2000Date of Patent: November 20, 2001Assignee: Kaneka CorporationInventors: Masashi Sakaguchi, Yoshimichi Yamanaka, Hidenari Tsunemi
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Patent number: 5550282Abstract: Dislcosed is a curable composition of a partially trimerized prepolymer of the dicyanate ester of the formula ##STR1## wherein R.sub.1 and R.sub.2 are the same or different and each is alkyl, perfluoroalkyl, aryl or halogen; and A is a bridge selected from the group consisting of a direct bond, methylene optionally mono- or disubstituted by alkyl, perfluoroalkyl and/or aryl, a five or six membered cycloalkylene, sulfonyl, thio, oxy, carbonyl, phenylene, and xylylene optionally substituted by alkyl at on or both methylene carbon atoms is useful in the manufacture of electrical laminates having excellent dielectric properties in the GHz region.Type: GrantFiled: July 13, 1994Date of Patent: August 27, 1996Assignee: Kanegafuchi Kagaku Kogyo Kabushiki KaishaInventors: Hidenari Tsunemi, Toshinobu Nakata
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Patent number: 5488144Abstract: A novel dicyanate ester of the formula: ##STR1## wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are the same or different and each is hydrogen, alkyl, perfluoroalkyl, aryl or halogen; A is a bridge selected from the group consisting of direct bond, methylene optionally mono- or di-substituted by alkyl, perfluoroalkyl and/or aryl, a five or six membered cycloalkylene, sulfonyl, thio, oxy, carbonyl, phenylene, and xylylene optionally substituted by alkyl at one or both methylene carbon atoms; with the proviso that when the cyanato group is at the para-position relative to the bridge A, both R.sub.1 and R.sub.2 are not hydrogen, and its prepolymer are useful in the manufacture of electrical laminates having excellent dielectric properties in GHz region.Type: GrantFiled: April 15, 1994Date of Patent: January 30, 1996Assignee: Kanegafuchi Kagaku Kogyo Kabushiki KaishaInventors: Hidenari Tsunemi, Toshinobu Nakata
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Patent number: 5360887Abstract: A flame-retarded thermosetting resin composition is provided by blending about 5 to 45 mole % of a phenylcyanate having at least one halogen substituent at the ortho or para position relative to the cyanato group, and about 55 to 95 mole % of a halogen-free bis-4-phenylcyanate. A flame retardancy of V-O grade of UL94 is achieved in the thermoset resin of the composition without compromising dielectric, heat resistance, moisture absorption and other properties.Type: GrantFiled: July 28, 1993Date of Patent: November 1, 1994Assignee: Kanegafuchi Kagaku Kogyo Kabushiki KaishaInventors: Hidenari Tsunemi, Toshinobu Nakata, Koyoyuki Namura
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Patent number: 4990397Abstract: An unsaturated polyester composition is provided comprising an unsaturate polyester component, a cross-linking monomer and as a modifier of the resin a polyoxyalkylene alcohol at least partially esterified with a polymerizable unsaturated carboxylic acid. The modifier is produced by esterifying the hydroxy group of a polyoxyalkylene mono- or polyalcohol at least partially with a polymerizable carboxylic acid such as a maleic acid.Type: GrantFiled: May 3, 1990Date of Patent: February 5, 1991Assignee: Kanegafuchi Kagaku Kogyo Kabushiki KaishaInventors: Hidenari Tsunemi, Yasuo Fushiki, Asaichi Nishimura, Yousuke Kawai
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Patent number: 4943474Abstract: An unsaturated polyester composition is provided comprising an unsaturate polyester component, a cross-linking monomer and as a modifier of the resin a polyoxyalkylene alcohol at least partially esterified with a polymerizable unsaturated carboxylic acid. The modifier is produced by esterifying the hydroxy group of a polyoxyalkylene mono- or polyalcohol at least partially with a polymerizable carboxylic acid such as maleic acid.Type: GrantFiled: January 12, 1989Date of Patent: July 24, 1990Assignee: Kanegafuchi Kagaku Kogyo Kabushiki KaishaInventors: Hidenari Tsunemi, Yasuo Fushiki, Asaichi Nishimura, Yousuke Kawai
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Patent number: 4710420Abstract: An unsaturated polyester resin composition is provided comprising a hard unsaturated polyester component, a soft unsaturated polyester component and a cross-linking monomer. The soft polyester component contains a polyoxyalkylene segment having a molecular weight from 600 to 6000 in the backbone thereof and is dispersed in the hard polyester component forming fine particles having a particle size not greater than 4 microns. The resin composition, when cured, exhibits a Tg corresponding to the hard polyester component from 100.degree. C. to 200.degree. C. and another Tg corresponding to the soft polyester component from -100.degree. C. to 0.degree. C.Type: GrantFiled: December 20, 1985Date of Patent: December 1, 1987Assignee: Kanegafuchi Kagaku Kogyo Kabushiki KaishaInventors: Satoshi Tonoki, Hidenari Tsunemi, Asaichi Nishimura, Kunihisa Abe