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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Patent number: 9675845Abstract: Golf ball having a core and a cover of one or more layers, the core being formed of a material molded under heat from a rubber composition including a base rubber, an organic peroxide, and water and/or a metal monocarboxylate. Defining the tan ? slope as (tan ?10?tan ?1)/(10%?1%), where tan ?1 and tan ?10 are the loss tangents at dynamic strains of, respectively, 1% and 10% when the loss tangents of the core center and the core surface are measured at ?12° C. and 15 Hz, the difference between the tan ? slopes at the core surface and the core center is larger than 0.002. Because a core material which undergoes little decrease in resilience over time and experiences little energy loss can be obtained, the golf ball maintains a good rebound, has a reduced spin rate and thus is able to achieve an increased distance.Type: GrantFiled: December 8, 2015Date of Patent: June 13, 2017Assignee: Bridgestone Sports Co., Ltd.Inventors: Tsuyoshi Nakajima, Yuichiro Ozawa
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Publication number: 20160375315Abstract: In a golf ball having a core and a cover, the core is formed of a rubber composition, has center and surface portions which are unfoamed regions and has an intermediate portion containing a foamed region. The core is produced by charging the rubber composition, which contains a blowing agent, into a first curing mold and curing under given conditions, then removing the molded rubber material in a semi-cured state from the first mold, transferring the semi-cured material to a second curing mold and curing under given conditions. The foamed region of the core deforms by a certain degree at the time of impact, decreasing the radius of gyration of the ball and enabling a lower spin rate to be achieved. The decrease in resilience due to expansion of the molded material can be held to a minimum.Type: ApplicationFiled: May 24, 2016Publication date: December 29, 2016Applicant: Bridgestone Sports Co., Ltd.Inventor: Tsuyoshi NAKAJIMA
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Publication number: 20160354644Abstract: In a golf ball having a core, a cover and an intermediate layer therebetween, the ball and a sphere consisting of the core encased by the intermediate layer have surface hardnesses which satisfy a specific relationship, the intermediate layer and the cover have thicknesses which satisfy a specific relationship, and the core has a hardness profile in which the hardnesses at the core center, at positions 5 mm, 10 mm and 15 mm from the core center and at the core surface satisfy specific relationships. This ball, when played by mid- and high-level amateur golfers, achieves a good distance on driver shots, has a soft feel at impact and maintains the spin performance at a high level on approach shots.Type: ApplicationFiled: April 27, 2016Publication date: December 8, 2016Applicant: Bridgestone Sports Co., Ltd.Inventors: Hideo WATANABE, Akira KIMURA, Tsuyoshi NAKAJIMA, Takanori TAGO, Hiroyuki ONO
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Patent number: 9509095Abstract: A charging connector in accordance with the present invention includes: connector cases that house a connector fitting portion; a locking arm in which a locking claw retractable from an outer peripheral surface of the connector fitting portion is provided at a tip, and that rocks centering around a shaft core between a locking position and a releasing position; and a coil spring that biases the locking arm toward the locking position. The locking arm includes a lock releasing portion that is inserted into a through hole formed in the connector cases, and with which the locking arm can be operated to the releasing position from an outside of the connector cases.Type: GrantFiled: September 24, 2015Date of Patent: November 29, 2016Assignees: YAZAKI CORPORATION, NISSAN MOTOR CO., LTD.Inventors: Takenori Ohmura, Tsuyoshi Nakajima
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Publication number: 20160279484Abstract: In a golf ball having, in order, a core, an envelope layer, an intermediate layer and a cover, the following conditions are satisfied: (I) ball surface hardness>intermediate layer surface hardness>envelope layer surface hardness<core surface hardness, (II) (Shore D hardness at core surface?Shore D hardness at envelope layer surface)?10, (III) (cover thickness?intermediate layer thickness)>0.05 mm, (IV) (intermediate layer thickness?envelope layer thickness)>0.05 mm, and (V) (Cs?C10)/(C10?Cc)>1.0 (where Cs denotes the JIS-C hardness at the core surface, C10 the JIS-C hardness at a position 10 mm from a center of the core, and Cc the JIS-C hardness at the core center). The ball provides an excellent flight performance when struck by the average golfer, a feel that is both soft and solid, and an excellent durability to repeated impact.Type: ApplicationFiled: February 19, 2016Publication date: September 29, 2016Applicant: Bridgestone Sports Co., Ltd.Inventors: Hideo WATANABE, Atsuki KASASHIMA, Tsuyoshi NAKAJIMA, Takanori TAGO
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Patent number: 9446673Abstract: A lock mechanism, when a restricting member is being moved to a predetermined position which corresponds to one of a locked state or an unlocked state, imparts a torque, using a motor, to move the restricting member from an inner-side position near the predetermined position to the predetermined position using a toggle spring disposed between the restricting member and a vehicle body side.Type: GrantFiled: June 5, 2013Date of Patent: September 20, 2016Assignees: Nissan Motor Co., Ltd., Mitsuba CorporationInventors: Tsuyoshi Nakajima, Tsuyoshi Maruyama, Hiroyuki Senda
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Publication number: 20160199701Abstract: The invention provides a golf ball having a core and a cover of one layer or a plurality of layers, the core being formed of a material molded under heat from a rubber composition containing: (A) a base rubber, (B) an organic peroxide, and (C) water and/or a metal monocarboxylate. The core has a hardness profile which satisfies specific relationships between the JIS-C hardness at the core center (Cc), the JIS-C hardness at a position 10 mm from the core center (C10) and the JIS-C hardness at the core surface (Cs).Type: ApplicationFiled: December 18, 2015Publication date: July 14, 2016Applicant: Bridgestone Sports Co., Ltd.Inventors: Hideo WATANABE, Tsuyoshi NAKAJIMA, Yuichiro OZAWA
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Publication number: 20160184655Abstract: The invention provides a golf ball having a core and a cover of one layer or a plurality of layers, wherein the core is formed of a material molded under heat from a rubber composition containing (A) a base rubber, (B) an organic peroxide, and (C) water and/or a metal monocarboxylate, and has a hysteresis loss of 50% or less when compressed at a load cell speed of 500 mm/min and under a constant load of 5,000 N.Type: ApplicationFiled: December 30, 2015Publication date: June 30, 2016Applicant: Bridgestone Sports Co., Ltd.Inventors: Kae YAMAZAKI, Tsuyoshi NAKAJIMA, Yuichiro OZAWA
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Publication number: 20160166887Abstract: Golf ball having a core and a cover of one or more layers, the core being formed of a material molded under heat from a rubber composition including a base rubber, an organic peroxide, and water and/or a metal monocarboxylate. Defining the tan ? slope as (tan ?10?tan ?1)/(10%?1%), where tan ?1 and tan ?10 are the loss tangents at dynamic strains of, respectively, 1% and 10% when the loss tangents of the core center and the core surface are measured at ?12° C. and 15 Hz, the difference between the tan ? slopes at the core surface and the core center is larger than 0.002. Because a core material which undergoes little decrease in resilience over time and experiences little energy loss can be obtained, the golf ball maintains a good rebound, has a reduced spin rate and thus is able to achieve an increased distance.Type: ApplicationFiled: December 8, 2015Publication date: June 16, 2016Applicant: BRIDGESTONE SPORTS CO., LTD.Inventors: Tsuyoshi NAKAJIMA, Yuichiro OZAWA
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Patent number: 9364721Abstract: 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: GrantFiled: May 1, 2012Date of Patent: June 14, 2016Assignee: Bridgestone Sports Co., Ltd.Inventors: Tsuyoshi Nakajima, Kazufumi Tabata, Yuichiro Ozawa, Takashi Ohira, Hiroshi Higuchi
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Patent number: 9350118Abstract: 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: GrantFiled: September 20, 2012Date of Patent: May 24, 2016Assignee: NISSAN MOTOR CO., LTD.Inventor: Tsuyoshi Nakajima
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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
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Publication number: 20160074710Abstract: The invention provides a golf ball having a core and a cover of one layer or a plurality of layers, the core being formed of a material molded under heat from a rubber composition which includes (A) a base rubber, (B) an organic peroxide, and (C) water and/or a metal monocarboxylate. The product P×E of the difference P (mol/m3) in crosslink density between the core surface and the core center, as measured based on a toluene swelling test, multiplied by the deflection E (mm) of the core when compressed under a final load of 1,275 N (130 kgf) from an initial load state of 98 N (10 kgf) is at least 28×102 mol/m3·mm.Type: ApplicationFiled: November 6, 2015Publication date: March 17, 2016Applicant: Bridgestone Sports Co., Ltd.Inventors: Tsuyoshi NAKAJIMA, Yuichiro OZAWA
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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
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Patent number: 9246270Abstract: In a power supply connector, when defect is detected at the locking part by the defect detection means, sliding of the connector body and the grasping member with respect to the case is locked by the case lock mechanism; when defect is not detected at the locking part, the case lock mechanism is released and the connector body and the grasping member become slidable in a direction of nearly the same axis line with respect to the case. When the grasping member is slid forward with respect to the case in a state in which the case lock mechanism is released, the connector body becomes movable to the front with respect to the case. As a result, in the power supply connector, the connector in the power supply side is not connectable to the connector of the power reception side when there is a defect in the locking part.Type: GrantFiled: April 21, 2015Date of Patent: January 26, 2016Assignees: FURUKAWA ELECTRIC CO., LTD., NISSAN MOTOR CO., LTD.Inventors: Tomoaki Toratani, Naomi Takahashi, Tsuyoshi Nakajima
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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
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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
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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
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Publication number: 20160020555Abstract: A charging connector in accordance with the present invention includes: connector cases that house a connector fitting portion; a locking arm in which a locking claw retractable from an outer peripheral surface of the connector fitting portion is provided at a tip, and that rocks centering around a shaft core between a locking position and a releasing position; and a coil spring that biases the locking arm toward the locking position. The locking arm includes a lock releasing portion that is inserted into a through hole formed in the connector cases, and with which the locking arm can be operated to the releasing position from an outside of the connector cases.Type: ApplicationFiled: September 24, 2015Publication date: January 21, 2016Inventors: Takenori OHMURA, Tsuyoshi NAKAJIMA
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Patent number: 9216656Abstract: 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: GrantFiled: September 18, 2012Date of Patent: December 22, 2015Assignee: Nissan Motor Co., Ltd.Inventor: Tsuyoshi Nakajima