Patents by Inventor Hiroharu Ikeda
Hiroharu Ikeda 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).
-
Publication number: 20070003473Abstract: A graphite fibril material comprised primarily of an aggregate of an average particle diameter of 0.1 to 100 ?m in which-fibrils are intertwined, the fibrils being graphite fibrils of a fiber diameter of 0.0035 to 0.075 ?m and spacing of the carbon hexagonal net plane as determined by the X-ray diffraction method of 3.36 to 3.53 angstroms. It is of high crystallinity and purity and is of superior conductivity, chemical stability, solvent absorption capacity and reinforcing capacity.Type: ApplicationFiled: August 31, 2006Publication date: January 4, 2007Applicant: Hyperion Catalysis International, Inc.Inventors: Hiroharu Ikeda, Paul Nahass, Robert Hausslein
-
Publication number: 20040126307Abstract: A graphite fibril material comprised primarily of an aggregate of an average particle diameter of 0.1 to 100 &mgr;m in which-fibrils are intertwined, the fibrils being graphite fibrils of a fiber diameter of 0.0035 to 0.075 &mgr;m and spacing of the carbon hexagonal net plane as determined by the X-ray diffraction method of 3.36 to 3.53 angstroms.Type: ApplicationFiled: June 20, 2003Publication date: July 1, 2004Applicant: Hyperion Catalysis International, Inc.Inventors: Hiroharu Ikeda, Paul R. Nahass, Robert Hausslein
-
Publication number: 20020068033Abstract: A graphite fibril material comprised primarily of an aggregate of an average particle diameter of 0.1 to 100 &mgr;m in which fibrils are intertwinned, the fibrils being graphite fibrils of a fiber diameter of 0.0035 to 0.075 &mgr;m and spacing of the carbon hexagonal net plane as determined by the X-ray diffraction method of 3.36 to 3.53 angstroms. It is of high crystallinity and purity and is of superior conductivity, chemical stability, solvent absorption capacity and reinforcing capacity.Type: ApplicationFiled: August 29, 1996Publication date: June 6, 2002Inventors: HIROHARU IKEDA, PAUL R. NAHASS, ROBERT HAUSSLEIN
-
Patent number: 5879836Abstract: A lithium battery characterized in that the anode (1) is formed from a carbon fibril material comprised of an aggregate of fibrils or non-aggregated mass of fibrils having an average particle diameter of 0.1 to 100 microns in which fine, filiform carbon fibrils of 3.5 to 75 nm an in diameter are intertwinned with each other, and fibrils being intercalated with lithium. The cathode (3) also contains carbon fibrils.Type: GrantFiled: August 29, 1996Date of Patent: March 9, 1999Assignee: Hyperion Catalysis International Inc.Inventors: Hiroharu Ikeda, Robert Hoch, Robert Hausslein
-
Patent number: 5861454Abstract: A rubber composition containing carbon fibrils in which 0.5 to 60 parts by weight of carbon fibril material comprised primarily of an aggregate of fibrils having an average particle diameter of 0.05 to 50 microns in which fine, filiform carbon fibrils of 3.5 to 75 nm in diameter are intertwined with each other is mixed with 99.5 to 40 parts by weight of synthetic rubber and/or natural rubber and a pneumatic tire in which the surface layer is provided with this rubber composition.Type: GrantFiled: August 24, 1996Date of Patent: January 19, 1999Assignee: Hyperion Catalysis Int'lInventors: Hiroharu Ikeda, Naoya Ogata, Robert Hausslein, David Moy, Chun Ming Niu
-
Patent number: 4923948Abstract: A curable composition comprising (a) an amic acid compound and/or an imide compound each containing a silicon atom having at least one hydrolyzable group and (b) an organosilane compound represented by the formula (I): ##STR1## wherein R.sup.1 -R.sub.6, which may be the same or different, are alkyl groups of 1-10 carbon atoms or aryl groups of 6-10 carbon atoms. Said composition is suitably used for the formation of a protective film for a transparent substrate or a color filter in liquid crystal display devices.Type: GrantFiled: September 22, 1988Date of Patent: May 8, 1990Assignee: Japan Synthetic Rubber Co., Ltd.Inventors: Yasuo Matsuki, Yosinobu Kariya, Masayuki Endo, Hiroharu Ikeda, Yoshihiro Hosaka
-
Patent number: 4380607Abstract: A rubber composition consisting essentially of a dispersion in which particles of a high-melting isotactic poly-.alpha.-olefin having a melting point of at least 150.degree. C. are uniformly dispersed in a rubber matrix, said particles having an average particle size of not more than 200.mu., has a high modulus of elasticity and also excellent tear resistance. Such rubber composition can be obtained, for example, by mixing fine powder of said isotactic poly-.alpha.-olefin having an average particle size of not more than 200.mu. with a rubber solution, dispersing the particles uniformly in said rubber solution and recovering a rubber composition from the dispersion.Type: GrantFiled: April 23, 1981Date of Patent: April 19, 1983Assignee: Japan Synthetic Rubber Co., Ltd.Inventors: Hiroharu Ikeda, Kohei Goto, Yasuyuki Shimozato
-
Patent number: 4371668Abstract: A novel rubber compound which comprises 100 parts by weight of a rubber component (I), 0.1-15 parts by weight of an amine salt of carboxylic acid (II) and 0-7 parts by weight of sulfur (III), said rubber component (I) consisting of 40-100% by weight of an elastomeric copolymer (A) and 60-0% by weight of a vulcanizable rubber (B); said elastomeric copolymer (A) being composed of a C.sub.4 or C.sub.5 conjugated diene, styrene and a glycidyl group-containing monomer; the amount of said conjugated diene, the total amount of said conjugated diene and said styrene and the amount of said glycidyl group-containing monomer being 50% by weight or more, 80-99.5% by weight and 0.5-20% by weight, respectively, based on the weight of said elastomeric copolymer (A); and the content of said glycidyl group-containing monomer in said rubber component (I) being 0.Type: GrantFiled: March 9, 1981Date of Patent: February 1, 1983Assignee: Japan Synthetic Rubber Co., Ltd.Inventors: Hiroharu Ikeda, Yasuyuki Shimozato
-
Patent number: 4322319Abstract: A rubber composition comprising (A) 100 parts by weight of a rubber; (B) 5 to 50 parts by weight of a low molecular weight diene copolymer containing a glycidyl group-containing monomer or chloromethylstyrene, said copolymer (B) comprising 30% by weight or less of copolymerized styrene, and having an intrinsic viscosity of 0.2 to 1.3 dl/g as measured in toluene at 30.degree. C.; (C) a crosslinking agent reactive with the glycidyl group or the chloromethyl group in the copolymer (B) selected from (C.sub.I) a metallic oxide and (C.sub.II) an amine compound; and (D) 0.2 to 7 parts by weight, per 100 parts by weight of the rubber (A), of sulfur. This rubber composition has a good processability and can give a vulcanizate having excellent physical properties.Type: GrantFiled: August 29, 1980Date of Patent: March 30, 1982Assignee: Japan Synthetic Rubber Co., Ltd.Inventors: Hiroharu Ikeda, Yasuyuki Shimozato, Kazuo Sekine
-
Patent number: 4281085Abstract: A novel rubber compound which comprises 100 parts by weight of a rubber component (I), 0.1-15 parts by weight of an amine salt of carboxylic acid (II) and 0-7 parts by weight of sulfur (III), said rubber component (I) consisting of 40-100% by weight of an elastomeric copolymer (A) and 60-0% by weight of a vulcanizable rubber (B); said elastomeric copolymer (A) being composed of a C.sub.4 or C.sub.5 conjugated diene, styrene, and a glycidyl group-containing monomer; the amount of said conjugated diene, the total amount of said conjugated diene and said styrene and the amount of said glycidyl group-containing monomer being 50% by weight or more, 80-99.5% weight and 0.5-20% by weight, respectively, based on the weight of said elastomeric copolymer (A); and the content of said glycidyl group-containing monomer in said rubber component (I) being 0.Type: GrantFiled: May 10, 1979Date of Patent: July 28, 1981Assignee: Japan Synthetic Rubber Company, Ltd.Inventors: Hiroharu Ikeda, Yasuyuki Shimozato
-
Patent number: 4252918Abstract: When an elastomeric copolymer of a C.sub.4 or C.sub.5 conjugated diene and an aromatic vinyl compound is brominated in latex while keeping the uniformity of the latex until the amount of bormine combined with the copolymer reaches 0.5-15% by weight, the resulting brominated conjugated diene-aromatic vinyl compound rubber contains 3-80% by weight of a toluene-insoluble fraction formed by the bromination and has a high green strength and a good processability. A vulcanized rubber obtained from said brominated rubber has a high modulus of elasticity and a high tensile strength. When an anionic surfactant is used as an emulsifier, the uniformity of the above-mentioned latex can be kept by adjusting the pH value of the bromination reaction system to 9 or highter, preferably 10 or higher, during the reaction or by auxiliarily adding a nonionic surfactant. When a cationic or nonionic surfactant is used as an emulsifier, regulation of pH is unnecessary.Type: GrantFiled: May 30, 1979Date of Patent: February 24, 1981Assignee: Japan Synthetic Rubber Co., Ltd.Inventors: Hiroharu Ikeda, Yasuyuki Shimozato, Kohei Goto
-
Patent number: 4176220Abstract: A catalyst composition consisting essentially of a reaction mixture of (A) at least one member selected from the group consisting of compounds of W, Mo, Re and Ta, (B) at least one member selected from the group consisting of organometallic compounds of elements of Groups IA, IIA, IIB and IIIA of the Deming Periodic Table, and (C) at least one member selected from the group consisting of compounds of V, Cr, Mn, and elements of Groups IVB and VIII of the Deming Periodic Table, has a very high activity in the ring-opening polymerization of norbornene derivatives having at least one polar substituent selected from the group consisting of ester groups, nitrile groups, amide groups, imide groups, carboxylic acid anhydride groups and halogens. The metal atom ratio of (C)/(A) is usually 0.001-50, and the molar ratio of (B)/(A) is usually 1-10.Type: GrantFiled: September 27, 1977Date of Patent: November 27, 1979Assignee: Japan Synthetic Rubber Co., Ltd.Inventors: Hiroharu Ikeda, Shuichi Matsumoto, Kenya Makino
-
Patent number: 4106943Abstract: An organic solvent- or water-developable photosensitive composition consisting essentially of a ring-opened polymer or copolymer of at least one norbornene derivative having at least one substituent selected from the group consisting of ester groups, nitrile groups, carboxyl groups, amide groups, imide groups, hydroxyl groups, halogens and carboxylic acid anhydride groups, or a ring-opened copolymer of at least one said norbornene derivative and at least one cycloolefin other than cyclohexene, or a hydrolysis product of said ring-opened polymer or copolymer and a photosensitive crosslinking agent or photosensitizer soluble in organic solvents or water. The above photosensitive composition is excellent in sensitivity, adhesion and stability.Type: GrantFiled: October 13, 1976Date of Patent: August 15, 1978Assignee: Japan Synthetic Rubber Co., Ltd.Inventors: Hiroharu Ikeda, Seiji Aotani, Yoshiyuki Harita
-
Patent number: 4068063Abstract: A catalyst composition consisting essentially of a reaction mixture of (A) at least one member selected from the group consisting of compounds of W, Mo, Re and Ta, (B) at least one member selected from the group consisting of organometallic compounds of elements of Groups IA, IIA, IIB and IIIA of the Deming Periodic Table, and (C) at least one member selected from the group consisting of compounds of V, Cr, Mn, and elements of Groups IVB and VIII of the Deming Periodic Table, has a very high activity in the ring-opening polymerization of norbornene derivatives having at least one polar substituent selected from the group consisting of ester groups, nitrile groups, amide groups, imide groups, carboxylic acid anhydride groups and halogens. The metal atom ratio of (C)/(A) is usually 0.001 - 50, and the molar ratio of (B)/(A) is usually 1 - 10.Type: GrantFiled: October 7, 1974Date of Patent: January 10, 1978Assignee: Japan Synthetic Rubber Co., Ltd.Inventors: Hiroharu Ikeda, Shuichi Matsumoto, Kenya Makino
-
Patent number: 4039491Abstract: A novel copolymer is obtained by reacting [A] at least one norbornene derivative having at least one polar group or polar-group-containing substituent with [B] at least one unsaturated polymer having carbon-to-carbon double bonds in the presence of a metathesis catalyst. This copolymer is excellent in chemical and mechanical properties. Particularly, when 50% by weight or more of the component [A] is contained, the resin is distinguished for its high impact strength.Type: GrantFiled: June 2, 1975Date of Patent: August 2, 1977Assignee: Japan Synthetic Rubber Co., Ltd.Inventors: Hiroharu Ikeda, Shuichi Matsumoto, Hiroji Enyo, Noboru Oshima, Koei Komatsu
-
Patent number: 3931136Abstract: High molecular weight cis-1,4-polyisoprene is produced by contacting isoprene with a catalyst formed by admixing (A) a titanium tetrachloride, (B) a trihydrocarbylaluminum and (C) a beta-diketone. The activity of this ternary catalyst is not adversely affected by such impurities as cyclopentadiene that are contained in the feed stock isoprene.Type: GrantFiled: May 23, 1974Date of Patent: January 6, 1976Assignee: Japan Synthetic Rubber Co., Ltd.Inventors: Kan Mori, Hiroharu Ikeda, Isao Nagaoka, Tooru Shibata, Sigeo Kawatani, Tatsuhiko Kikuchi