Patents by Inventor Hideo Takeichi
Hideo Takeichi 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).
-
Patent number: 9314673Abstract: A golf ball having a good rebound and excellent flight performance can be obtained using a golf ball composition which contains a diene polymer having an aluminum catalyst residue content of not more than 650 ppm.Type: GrantFiled: March 14, 2012Date of Patent: April 19, 2016Assignees: BRIDGESTONE SPORTS CO., LTD, BRIDGESTONE CORPORATIONInventors: Hideo Takeichi, Takashi Ohira, Yuichiro Ozawa, Tsuyoshi Nakajima, Satoru Tamaki, Yusuke Yamagata, Teppei Mori
-
Patent number: 9254420Abstract: A golf ball having a good rebound and excellent flight performance can be obtained using a golf ball composition which includes a diene polymer containing not more than 1.5% of components having a molecular weight of 30,000 or less.Type: GrantFiled: March 14, 2012Date of Patent: February 9, 2016Assignees: BRIDGESTONE SPORTS CO., LTD., BRIDGESTONE CORPORATIONInventors: Hideo Takeichi, Takashi Ohira, Yuichiro Ozawa, Tsuyoshi Nakajima, Satoru Tamaki, Yusuke Yamagata, Teppei Mori
-
Patent number: 9242146Abstract: A golf ball having a good rebound and excellent flight performance can be obtained using a golf ball composition which contains a diene polymer having a smallest molecular weight value of at least 3,000.Type: GrantFiled: March 14, 2012Date of Patent: January 26, 2016Assignees: BRIDGESTONE SPORTS CO., LTD., BRIDGESTONE CORPORATIONInventors: Hideo Takeichi, Takashi Ohira, Yuichiro Ozawa, Tsuyoshi Nakajima, Satoru Tamaki, Yusuke Yamagata, Teppei Mori
-
Patent number: 9242145Abstract: A golf ball endowed with a good rebound and an excellent flight performance can be obtained using a golf ball composition of good workability which contains a diene polymer having a peak top molecular weight (Mp) on a molecular weight distribution curve measured using gel permeation chromatography (GPC) of at least 40×104 and not more than 100×104.Type: GrantFiled: March 14, 2012Date of Patent: January 26, 2016Assignees: BRIDGESTONE SPORTS CO., LTD., BRIDGESTONE CORPORATIONInventors: Hideo Takeichi, Takashi Ohira, Yuichiro Ozawa, Tsuyoshi Nakajima, Satoru Tamaki, Yusuke Yamagata, Teppei Mori
-
Patent number: 9242144Abstract: A golf ball having a good rebound and excellent flight performance can be obtained using a golf ball composition which includes a diene polymer having a molecular weight distribution (Mw/Mn) of less than 1.9.Type: GrantFiled: March 14, 2012Date of Patent: January 26, 2016Assignees: BRIDGESTONE SPORTS CO., LTD., BRIDGESTONE CORPORATIONInventors: Hideo Takeichi, Takashi Ohira, Yuichiro Ozawa, Tsuyoshi Nakajima, Satoru Tamaki, Yusuke Yamagata, Teppei Mori
-
Publication number: 20130150184Abstract: A golf ball having a good rebound and excellent flight performance can be obtained using a golf ball composition which contains a diene polymer having a smallest molecular weight value of at least 3,000.Type: ApplicationFiled: March 14, 2012Publication date: June 13, 2013Applicants: BRIDGESTONE CORPORATION, BRIDGESTONE SPORTS CO., LTD.Inventors: Hideo TAKEICHI, Takashi OHIRA, Yuichiro OZAWA, Tsuyoshi NAKAJIMA, Satoru TAMAKI, Yusuke YAMAGATA, Teppei MORI
-
Publication number: 20130150181Abstract: A golf ball having a good rebound and excellent flight performance can be obtained using a golf ball composition which includes a diene polymer having a molecular weight distribution (Mw/Mn) of less than 1.9.Type: ApplicationFiled: March 14, 2012Publication date: June 13, 2013Applicants: BRIDGESTONE CORPORATION, BRIDGESTONE SPORTS CO., LTD.Inventors: Hideo TAKEICHI, Takashi OHIRA, Yuichiro OZAWA, Tsuyoshi NAKAJIMA, Satoru TAMAKI, Yusuke YAMAGATA, Teppei MORI
-
Publication number: 20130150182Abstract: A golf ball having a good rebound and excellent flight performance can be obtained using a golf ball composition which includes a diene polymer containing not more than 1.5% of components having a molecular weight of 30,000 or less.Type: ApplicationFiled: March 14, 2012Publication date: June 13, 2013Applicants: BRIDGESTONE CORPORATION, BRIDGESTONE SPORTS CO., LTD.Inventors: Hideo TAKEICHI, Takashi OHIRA, Yuichiro OZAWA, Tsuyoshi NAKAJIMA, Satoru TAMAKI, Yusuke YAMAGATA, Teppei MORI
-
Publication number: 20130150185Abstract: A golf ball having a good rebound and excellent flight performance can be obtained using a golf ball composition which contains a diene polymer having an aluminum catalyst residue content of not more than 650 ppm.Type: ApplicationFiled: March 14, 2012Publication date: June 13, 2013Applicants: BRIDGESTONE CORPORATION, BRIDGESTONE SPORTS CO., LTD.Inventors: Hideo Takeichi, Takashi Ohira, Yuichiro Ozawa, Tsuyoshi Nakajima, Satoru Tamaki, Yusuke Yamagata, Teppei Mori
-
Publication number: 20130150183Abstract: A golf ball endowed with a good rebound and an excellent flight performance can be obtained using a golf ball composition of good workability which contains a diene polymer having a peak top molecular weight (Mp) on a molecular weight distribution curve measured using gel permeation chromatography (GPC) of at least 40×104 and not more than 100×104.Type: ApplicationFiled: March 14, 2012Publication date: June 13, 2013Applicants: BRIDGESTONE CORPORATION, BRIDGESTONE SPORTS CO., LTD.Inventors: Hideo TAKEICHI, Takashi OHIRA, Yuichiro OZAWA, Tsuyoshi NAKAJIMA, Satoru TAMAKI, Yusuke YAMAGATA, Teppei MORI
-
Publication number: 20050175829Abstract: The present invention provides a rubber composition comprising 100 parts by mass of a rubber and 0.1 to 100 parts by mass of carbon fibers as a filler which are produced by a vapor phase epitaxial growth method and respectively include one or more bottomless cup-shaped carbon network layers, wherein the respective carbon network layer in the form of stacked cups have a large diameter portion whose end face is exposed to a periphery of the carbon fiber. The rubber composition and tire of the present invention have a high thermal conductivity and are excellent in other properties such as mechanical properties.Type: ApplicationFiled: June 2, 2003Publication date: August 11, 2005Inventors: Sei Aoki, Hideo Takeichi, Takashi Yanagisawa, Shunji Higaki
-
Patent number: 6599988Abstract: The instant invention relates to poly(maleimide-co-alkenyl benzene) centipede polymer and a method for producing the polymer by reacting a poly(alkenyl benzene-co-maleic anhydride) in the presence of a primary amine in a substantially dry state. The invention is further directed to a process for blending the poly(maleimide-co-alkenyl benzene) centipede polymer with elastomeric polymers, in combination with, or in substitution of, conventional extender oils, to produce extended polymers having improved properties such as tensile strength, maximum elongation, tear strength, damping properties, and the like.Type: GrantFiled: April 29, 2002Date of Patent: July 29, 2003Assignee: Bridgestone CorporationInventors: Xiaorong Wang, Victor J. Foltz, Hideo Takeichi
-
Publication number: 20020161112Abstract: The instant invention relates to poly(maleimide-co-alkenyl benzene) centipede polymer and a method for producing the polymer by reacting a poly(alkenyl benzene-co-maleic anhydride) in the presence of a primary amine in a substantially dry state. The invention is further directed to a process for blending the poly(maleimide-co-alkenyl benzene) centipede polymer with elastomeric polymers, in combination with, or in substitution of, conventional extender oils, to produce extended polymers having improved properties such as tensile strength, maximum elongation, tear strength, damping properties, and the like.Type: ApplicationFiled: April 29, 2002Publication date: October 31, 2002Inventors: Xiaorong Wang, Victor J. Foltz, Hideo Takeichi
-
Patent number: 6329459Abstract: There are disclosed a block copolymer of at least one elastomeric block and at least one syndiotactic polystyrene block which comprises 100 parts by weight of a polymer component comprising 1 to 80% by weight of syndiotactic polystyrene (sPS) block(s) and 99 to 20% by weight of rubbery elastomeric block(s) and at least 30 parts by weight of an extender. These extended block copolymer compositions display the characteristics of thermoplastic elastomers and are useful for high temperature applications possessing unique softness.Type: GrantFiled: September 23, 1996Date of Patent: December 11, 2001Assignee: Bridgestone CorporationInventors: Jung W. Kang, Xiaorong Wang, Xiao-Liang Luo, Frank J. Clark, Jason T. Poulton, Takahiro Matsuse, Naruhiko Mashita, Hideo Takeichi, Shinichi Toyosawa
-
Patent number: 6248827Abstract: The instant invention relates to poly(maleimide-co-alkenyl benzene) centipede polymer and a method for producing the polymer by reacting a poly(alkenyl benzene-co-maleic anhydride) in the presence of a primary amine in a substantially dry state. The invention is further directed to a process for blending the poly(maleimide-co-alkenyl benzene) centipede polymer with elastomeric polymers, in combination with, or in substitution of, conventional extender oils, to produce extended polymers having improved properties such as tensile strength, maximum elongation, tear strength, damping properties, and the like.Type: GrantFiled: December 22, 1997Date of Patent: June 19, 2001Assignee: Bridgestone CorporationInventors: Xiaorong Wang, Victor J. Foltz, Hideo Takeichi
-
Patent number: 6242536Abstract: The dispersibility of the initial polystyrene block in forming a S-B-S type of copolymer is improved by first preparing a small block of homopolydiene such as homopolybutadiene as a dispersing agent. Onto this small block of homopolybutadiene, the first block of polystyrene is formed and affixed and thereby made dispersible in a mixture of alkanes and 15 to 60% by weight of cycloalkanes, preferably hexane and cyclohexane. After the preparation of the dispersing agent and the first styrene block, the remaining monomer charges to the reactor are fed in aliphatic hydrocarbon diluents, preferably hexane or technical hexane, thereby greatly reducing the final percentage of cycloalkanes including cyclohexane in the reactor to less than 25% of total dispersing medium. The block copolymers produced according to the present process display a narrow molecular weight distribution and improved tensile strength over block copolymers produced in the absence of the additional cycloalkanes in the solvent system.Type: GrantFiled: December 11, 1997Date of Patent: June 5, 2001Assignee: Bridgestone CorporationInventors: James E. Hall, Daniel F. Graves, Hideo Takeichi
-
Patent number: 6228908Abstract: Diene polymers or copolymers having improved balance between raw polymer viscosity and mixed compound viscosity, useful in tire tread compositions having highly balanced wet traction, rolling resistance, and traction in ice and snow, and fracture properties in the cured and white carbon reinforced states are provided. These diene polymers or copolymers comprise a mixture of diene polymer or copolymer chains containing carbon-tin bonds in the main polymer or copolymer chains and diene polymer or copolymer chains containing terminals derived from hydrocarboxysilane compounds. The diene polymer or copolymers are prepared by first coupling a portion of the living diene polymer or copolymer chains obtained by anionic polymerization using a tin polyhalide coupling agent and then terminating the remaining living diene polymer or copolymer chains using hydrocarboxysilane compounds.Type: GrantFiled: January 12, 1999Date of Patent: May 8, 2001Assignee: Bridgestone CorporationInventors: Hideo Takeichi, Daniel F. Graves, Sunil B. Sarkar, David F. Lawson, William L. Hergenrother, William M. Cole, James Oziomek
-
Patent number: 6204354Abstract: The instant invention teaches a method for enabling the formation of a high damping, soft polymer gel. The method includes: reacting a poly(disubstituted ethylene-co-maleimide) polymer with a maleated polyalkylene and an alkyl diamine under substantially dry conditions sufficient to form a polyalkylene grafted poly(disubstituted ethylene-co-maleimide) polymer product; and, dispersing the polyalkylene grafted poly(disubstituted ethylene-co-maleimide) polymer product with an extender oil sufficient to form the gel. The instant invention also contemplates a polymer gel composition, a polymer composition and an article manufactured from the polymer gel composition.Type: GrantFiled: May 6, 1998Date of Patent: March 20, 2001Assignee: Bridgestone CorporationInventors: Xiaorong Wang, Victor J. Foltz, David F. Lawson, Hideo Takeichi, Naruhiko Mashita
-
Patent number: 6191197Abstract: There are disclosed a gel or polymer composition which comprises 100 parts by weight of a polymer blend component comprising 1 to 90% by weight of a poly(vinyl aromatic hydrocarbon) polymer having a syndiotactic configuration and 99 to 10% by weight of a rubbery elastomer and at least 30 parts by weight of an extender oil or a low molecular weight organic component. These gel compositions have super soft properties, heat resistance, and/or damping properties.Type: GrantFiled: September 23, 1996Date of Patent: February 20, 2001Assignee: Bridgestone CorporationInventors: Xiaorong Wang, Xiao-Liang Luo, Frank J. Clark, Hideo Takeichi, James E. Hall, Takahiro Matsuse, Naruhiko Mashita, Shinichi Toyosawa
-
Patent number: 6184292Abstract: The instant invention provides a soft gel composition comprising a hydrogenated block copolymer, a polyphenylene ether and a substantially amorphous polyolefin or hydrogenated polydiene blended in respective proportions sufficient to provide the composition with a Shore A hardness of 30 or less, and a service temperature of up to, and including about 150° C.Type: GrantFiled: October 5, 1998Date of Patent: February 6, 2001Assignee: Bridgestone CorporationInventors: James E. Hall, Xiaorong Wang, Hideo Takeichi, Naruhiko Mashita