Patents by Inventor Tsuyoshi Nakajima
Tsuyoshi Nakajima 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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Publication number: 20140235086Abstract: A charging port locking device is provided that basically includes a charging port and a lock mechanism. The lock mechanism achieves both locked and unlocked states by rotational movement of the restricting member. The restricting member is configured in the lock state with respect a reference line connecting a center of rotation of the restricting member and the center of width of the engaging portion as seen in a top view such that a top view area of the restricting member from the reference line in the rotational direction toward a restricting state is smaller than a top view area of the restricting member from the reference line in the rotational direction toward a non-restricting state.Type: ApplicationFiled: September 18, 2012Publication date: August 21, 2014Applicant: Nissan Motor Co., Ltd.Inventor: Tsuyoshi Nakajima
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Publication number: 20140235089Abstract: A vehicle charging port locking device has a charging port and a locking mechanism. The charging port has an engaged part that engage an engaging part of a charging connector for supplying power from an external power source to the charging port when in an engaged state. A restraining member is movably mounted between a locked state in which release of the engaged part is restricted by movement of the restraining member in a locking direction to prevent the engaging part from being released from the engaging state, and an unlocked state in which release of the engaging part is permitted by movement of the restraining member in an unlocking direction that is opposite the locking direction. The restraining member can be moved in the unlocking direction by operation of an exposed part that can be operated from beneath the hood of the vehicle.Type: ApplicationFiled: September 18, 2012Publication date: August 21, 2014Applicant: Nissan Motor Co., Ltd.Inventor: Tsuyoshi Nakajima
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Publication number: 20140235087Abstract: A charging port locking device is provided with an engagement member provided in a charging connector, for regulating the removal of the charging connector by engagement with an engagement part provided in a charging port, a restriction member provided in a vehicle, for restricting the disengagement of the engagement member, and a lock actuator for driving the restriction member. By virtue of the charging port locking device, the unintentional disconnection of the charging connector from the charging port can be avoided during charging in a state in which the charging port and the charging connector are connected.Type: ApplicationFiled: September 20, 2012Publication date: August 21, 2014Inventor: Tsuyoshi Nakajima
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Patent number: 8802788Abstract: Rubber composition for golf balls which includes: (A) a base rubber containing a polybutadiene having a cis-1,4 bond content of at least 60 wt %; (B) an unsaturated carboxylic acid and/or a metal salt thereof; (C) an anthranilic acid derivative of the general formula wherein R1 and R2 are each independently a hydrogen atom or a hydrocarbon group of 1 to 20 carbons, m is an integer from 1 to 4, and n is an integer from 1 to 3, with the proviso that if m and/or n is 2 or more, each occurrence of R1 and R2 may be the same or different; and (D) an organic peroxide having a one-minute half-life temperature which is at least 158° C. and less than 175° C. The rubber composition for golf balls of the invention enables a high-quality molded and crosslinked product having a suitable hardness and a high resilience to be obtained.Type: GrantFiled: December 11, 2012Date of Patent: August 12, 2014Assignees: Bridgestone Sports Co., Ltd., Bridgestone CorporationInventors: Tsuyoshi Nakajima, Yuichiro Ozawa, Yusuke Yamagata, Teppei Mori, Takahiro Iwai
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Publication number: 20140100059Abstract: The invention provides a golf ball having a core and ah cover of at least one layer. The core has a cross-sectional hardness which, letting R (mm) be the radius of the core, A be the JIS-C hardness at a center of the core, B be the JIS-C hardness at a position R/3 mm from the core center, C be the JIS-C hardness at a position R/1.8 mm from the core center, D be the JIS-C hardness at a position R/1.3 mm from the core center, and E be the JIS-C hardness at a surface of the core, satisfies the formulas (1) D?C?7, (2) C?B?7, (3) (D?C)?(C?B)?7, and (4) E?A?16.Type: ApplicationFiled: October 17, 2013Publication date: April 10, 2014Applicant: BRIDGESTONE SPORTS CO., LTD.Inventors: Akira KIMURA, Toru OGAWANA, Ryota NAKAMURA, Tsuyoshi NAKAJIMA
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Patent number: 8648133Abstract: The invention provides a rubber composition for golf balls which includes (A) a base rubber containing a polybutadiene having a cis-1,4 bond content of at least 60 wt %, (B) an unsaturated carboxylic acid and/or a metal salt thereof, and (C) a thiourea of the general formula wherein R is independently at each occurrence a hydrogen atom or a hydrocarbon group of 1 to 20 carbons. The golf ball rubber composition of the invention enables a high-quality molded and crosslinked product having a suitable hardness and a high resilience to be obtained.Type: GrantFiled: November 21, 2011Date of Patent: February 11, 2014Assignees: Bridgestone Sports Co., Ltd., Bridgestone CorporationInventors: Yuichiro Ozawa, Tsuyoshi Nakajima, Teppei Mori, Yusuke Yamagata, Takahiro Iwai
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Patent number: 8617639Abstract: A method of manufacturing golf balls having a highly transparent cover includes, prior to formation of the cover, a preformed body fabricating step wherein a fluorescent material that emits light when exposed to ultraviolet radiation is included in or coated onto the preformed body. In this way, a preformed body which matches a cover to be formed can be easily and reliably identified from among a plurality of types of preformed bodies stored at a temporary storage place. This manufacturing method enables golf balls of excellent visibility and stylishness to be efficiently produced.Type: GrantFiled: October 31, 2011Date of Patent: December 31, 2013Assignee: Bridgestone Sports Co., Ltd.Inventors: Tsuyoshi Nakajima, Takashi Ohira, Takuma Nakagawa
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Publication number: 20130296072Abstract: The invention provides a golf ball having a core and a cover of at least one layer. The core has a cross-sectional hardness which, letting (H?14) be a JIS-C hardness at a position 14 mm in from a surface toward a center of the core, (H?8) be a JIS-C hardness at a position 8 mm in from the surface toward the center of the core, (H?6) be a JIS-C hardness at a position 6 mm in from the surface toward the center of the core, and (H?4) be a JIS-C hardness at a position 4 mm in from the surface toward the center of the core, satisfies the formulas (1) H?14<70, (2) H?8<72, (3) H?6<75, and (3) H?4?H?8>8.Type: ApplicationFiled: May 1, 2012Publication date: November 7, 2013Applicant: BRIDGESTONE SPORTS CO., LTD.Inventors: Tsuyoshi NAKAJIMA, Kazufumi TABATA, Yuichiro OZAWA, Takashi OHIRA, Hiroshi HIGUCHI
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Publication number: 20130296074Abstract: The invention provides a golf ball having a core and a cover of at least one layer. The core is formed of a rubber composition which includes a polybutadiene-containing base rubber, an unsaturated carboxylic acid and/or a metal salt thereof, an organic peroxide and sulfur, and for which the value of [sulfur (mol)÷available active oxygen content in organic peroxide] is at least 0.01 and not more than 0.019.Type: ApplicationFiled: May 1, 2012Publication date: November 7, 2013Applicant: BRIDGESTONE SPORTS CO., LTD.Inventors: Yuichiro OZAWA, Kazufumi TABATA, Tsuyoshi NAKAJIMA, Takashi OHIRA, Hiroshi HIGUCHI
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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
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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
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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
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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
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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
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Publication number: 20130131277Abstract: The invention provides a rubber composition for golf balls which includes (A) a base rubber containing a polybutadiene having a cis-1,4 bond content of at least 60 wt %, (B) an unsaturated carboxylic acid and/or a metal salt thereof, and (C) a diphenylamine of the general formula wherein R1 and R2 are each independently a hydrogen atom or a hydrocarbon group of 1 to 20 carbons, m is an integer from 1 to 5, and n is an integer from 1 to 4, with the proviso that if m and/or n is 2 or more, each occurrence of R1 and R2 may be the same or different. The golf ball rubber composition of the invention enables a high-quality molded and crosslinked product having a suitable hardness and a high resilience to be obtained.Type: ApplicationFiled: November 21, 2011Publication date: May 23, 2013Applicants: BRIDGESTONE CORPORATION, BRIDGESTONE SPORTS CO., LTD.Inventors: Yuichiro OZAWA, Tsuyoshi NAKAJIMA, Yusuke YAMAGATA, Teppei MORI, Takahiro IWAI
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Publication number: 20130131236Abstract: The invention provides a rubber composition for golf balls which includes (A) a base rubber containing a polybutadiene having a cis-1,4 bond content of at least 60 wt %, (B) an unsaturated carboxylic acid and/or a metal salt thereof, and (C) a benzimidazole of general formula (1) or (2) below wherein R is a hydrogen atom or a hydrocarbon group of 1 to 20 carbons, and m is an integer from 1 to 4, with the proviso that if m is 2 or more, each occurrence of R may be the same or different. The golf ball rubber composition of the invention enables a high-quality molded and crosslinked product having a suitable hardness and a high resilience to be obtained.Type: ApplicationFiled: November 21, 2011Publication date: May 23, 2013Applicants: BRIDGESTONE CORPORATION, BRIDGESTONE SPORTS CO., LTD.Inventors: Yuichiro OZAWA, Tsuyoshi NAKAJIMA, Teppei MORI, Yusuke YAMAGATA, Takahiro IWAI
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Publication number: 20130131242Abstract: The invention provides a rubber composition for golf balls which includes (A) a base rubber containing a polybutadiene having a cis-1,4 bond content of at least 60 wt %, (B) an unsaturated carboxylic acid and/or a metal salt thereof, and (C) a thiourea of the general formula wherein R is independently at each occurrence a hydrogen atom or a hydrocarbon group of 1 to 20 carbons. The golf ball rubber composition of the invention enables a high-quality molded and crosslinked product having a suitable hardness and a high resilience to be obtained.Type: ApplicationFiled: November 21, 2011Publication date: May 23, 2013Applicants: BRIDGESTONE CORPORATION, BRIDGESTONE SPORTS CO., LTD.Inventors: Yuichiro OZAWA, Tsuyoshi NAKAJIMA, Teppei MORI, Yusuke Yamagata, Takahiro Iwai
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Publication number: 20130131243Abstract: The invention provides a rubber composition for golf balls which includes (A) a base rubber containing a polybutadiene having a cis-1,4 bond content of at least 60 wt %, (B) an unsaturated carboxylic acid and/or a metal salt thereof, and (C) a thiourea of the general formula wherein R is independently at each occurrence a hydrogen atom or a hydrocarbon group of 1 to 20 carbons, with the proviso that at least one occurrence of R is a hydrocarbon group of 1 to 20 carbons. The golf ball rubber composition of the invention enables a high-quality molded and crosslinked product having a suitable hardness and a high resilience to be obtained.Type: ApplicationFiled: November 21, 2011Publication date: May 23, 2013Applicants: BRIDGESTONE CORPORATION, BRIDGESTONE SPORTS CO., LTD.Inventors: Yuichiro OZAWA, Tsuyoshi NAKAJIMA, Yusuke YAMAGATA, Teppei MORI, Takahiro IWAI
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Publication number: 20130131234Abstract: The invention provides a rubber composition for golf balls which includes (A) a base rubber containing a polybutadiene having a cis-1,4 bond content of at least 60 wt %, (B) an unsaturated carboxylic acid and/or a metal salt thereof, and (C) a benzimidazole of general formula (1) below wherein R1 and R2 are each independently a hydrogen atom or a hydrocarbon group of 1 to 20 carbons, and m and n are each an integer from 1 to 4, with the proviso that if m and/or n is 2 or more, each occurrence of R1 and R2 may be the same or different. The golf ball rubber composition of the invention enables a high-quality molded and crosslinked product having a suitable hardness and a high resilience to be obtained.Type: ApplicationFiled: November 21, 2011Publication date: May 23, 2013Applicants: BRIDGESTONE CORPORATION, BRIDGESTONE SPORTS CO., LTD.Inventors: Yuichiro OZAWA, Tsuyoshi NAKAJIMA, Teppei MORI, Yusuke YAMAGATA, Takahiro IWAI
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Publication number: 20130109505Abstract: The invention provides a method of manufacturing golf balls having covers of very high transparency, which method includes, prior to formation of the cover, a preformed body fabricating step wherein a material that develops a specific color when exposed to ultraviolet radiation is included in or coated onto the preformed body. In this way, a preformed body that matches the cover to be formed can be easily and reliably identified from among a plurality of types of preformed bodies stored at a temporary storage place. The invention also provides golf balls having a construction suitable for carrying out such a manufacturing method. The invention enables golf balls of excellent visibility and stylishness to be efficiently produced.Type: ApplicationFiled: September 13, 2012Publication date: May 2, 2013Applicant: BRIDGESTONE SPORTS CO., LTD.Inventors: Toshiro Wachi, Tsuyoshi Nakajima, Takashi Ohira, Takuma Nakagawa