Patents by Inventor Kazushige Okamoto
Kazushige Okamoto 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: 11525241Abstract: In a hydraulic shovel including a crawler-type lower traveling body and a storage box provided at the front side of the right side of an upper rotating body, the upper face of the crawler has a stable space that can be used as a scaffold for a worker or as a temporary storage space such as a supply tank. The storage box has, at the front side of the right side, a notch that is obliquely cut from the upper side of the inner end in the left-and-right direction of the crawler to the rear side of the left and right outer sides. The notch has, at the lower side thereof, the upper face of the crawler that provides a space S usable as a scaffold for a worker or as a temporary storage space.Type: GrantFiled: August 22, 2018Date of Patent: December 13, 2022Assignee: Caterpillar SARLInventors: Niladri Manna, Shigeo Kajita, Kazushige Okamoto
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Publication number: 20210363725Abstract: In a hydraulic shovel including a crawler-type lower travelingbody and a storage box provided at the front side of the right side of an upper rotating body, the upper face of the crawler has a stable space that can be used as a scaffold for a worker or as a temporary storage space such as a supply tank. The storage box has, at the front side of the right side, a notch that is obliquely cut from the upper side of the inner end in the left-and-right direction of the crawler to the rear side of the left and right outer sides. The notch has, at the lower side thereof, the upper face of the crawler that provides a space S usable as a scaffold for a worker or as a temporary storage space.Type: ApplicationFiled: August 22, 2018Publication date: November 25, 2021Applicant: Caterpillar SARLInventors: Niladri MANNA, Shigeo KAJITA, Kazushige OKAMOTO
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Patent number: 8434787Abstract: A counterweight attachment and removal system includes a machine mounting bracket and a link having two spaced apart arms. A proximal end of the link is pivotably coupled with the machine mounting bracket. A rotate cylinder has a proximal end pivotably coupled with the machine mounting bracket and a distal end pivotably coupled with a distal end of the link. A slide cylinder has a proximal end pivotably coupled with the link and a distal end pivotably coupled with a lift pin. The lift pin is positioned through slots defined by the two spaced apart arms. The counterweight attachment and removal system includes a first configuration in which the link is pivoted away from the machine mounting bracket, the rotate cylinder is retracted, the slide cylinder is extended, and the lift pin is positioned through distal portions of the slots.Type: GrantFiled: June 10, 2011Date of Patent: May 7, 2013Assignee: Caterpillar Inc.Inventors: Praveen Halepatali, Ha-Rok Bae, Kazushige Okamoto, Hiroaki Ando, Yozo Nakamoto, Chris Ha
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Publication number: 20120315121Abstract: A counterweight attachment and removal system includes a machine mounting bracket and a link having two spaced apart arms. A proximal end of the link is pivotably coupled with the machine mounting bracket. A rotate cylinder has a proximal end pivotably coupled with the machine mounting bracket and a distal end pivotably coupled with a distal end of the link. A slide cylinder has a proximal end pivotably coupled with the link and a distal end pivotably coupled with a lift pin. The lift pin is positioned through slots defined by the two spaced apart arms. The counterweight attachment and removal system includes a first configuration in which the link is pivoted away from the machine mounting bracket, the rotate cylinder is retracted, the slide cylinder is extended, and the lift pin is positioned through distal portions of the slots.Type: ApplicationFiled: June 10, 2011Publication date: December 13, 2012Applicant: CATERPILLAR INC.Inventors: Praveen Halepatali, Ha-Rok Bae, Kazushige Okamoto, Hiroaki Ando, Yozo Nakamoto, Chris Ha
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Patent number: 7281370Abstract: Temperature of each cooling target fluid is detected. When the flow rate of a cooling target fluid passing through a cooling system is high, the fan revolution speed of a cooling fan of the cooling system is controlled to achieve a target fan revolution speed so that the detected temperature of the cooling target fluid reaches a preset target temperature. In cases where the engine is in a low idling state, the flow rate of each cooling target fluid passing through the cooling system is reduced. The fan revolution speed of the cooling fan is controlled to achieve a new target fan revolution speed that is lower than the target fan revolution speed.Type: GrantFiled: March 18, 2004Date of Patent: October 16, 2007Assignee: Shin Caterpillar Mitsubishi Ltd.Inventors: Hideto Furuta, Kazushige Okamoto, Noriyuki Adachi
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Patent number: 7275368Abstract: The invention is a fan revolution control method for controlling a pump-motor system, by controlling the fan revolution speed of a cooling fan adapted to be rotated by a fan motor to cool cooling target fluids. The pump-motor system drives the fan motor by a hydraulic fluid fed from a fan pump driven by an engine. The pump-motor system is controlled so the fan revolution speed starts from the minimum fan revolution speed when the engine is started up; the minimum fan revolution speed is maintained for at least several seconds; after the elapse of several seconds, the fan revolution speed is gradually increased from the minimum fan revolution speed. The fan revolution speed reaches a target fan revolution speed over a period of at least several seconds. The method prevents generation of peak pressure or pressure hunting.Type: GrantFiled: March 18, 2004Date of Patent: October 2, 2007Assignee: Shin Caterpillar Mitsubishi Ltd.Inventors: Hideto Furuta, Nobumi Toyoura, Kazushige Okamoto
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Publication number: 20060062678Abstract: Temperature of each cooling target fluid is detected. When the flow rate of a cooling target fluid passing through a cooling system is high, the fan revolution speed of a cooling fan of the cooling system is controlled to achieve a target fan revolution speed so that the detected temperature of the cooling target fluid reaches a preset target temperature. In cases where the engine is in a low idling state, the flow rate of each cooling target fluid passing through the cooling system is reduced. The fan revolution speed of the cooling fan is controlled to achieve a new target fan revolution speed that is lower than the target fan revolution speed.Type: ApplicationFiled: March 18, 2004Publication date: March 23, 2006Applicant: SHIN CATERPILLAR MITSUBISHIInventors: Hideto Furuta, Kazushige Okamoto, Noriyuki Adachi
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Patent number: 6828414Abstract: A process for producing an aromatic polyether having a high molecular weight, small dispersion of the molecular weight, excellent in the heat resistance as well as the impact resistance and represented by the formula (1): wherein each of x1 and x2 independently represents a halogen, and n represents an integer of 1 or above is provided, which comprises polymerizing 4,4′-biphenol with a 4,4′-dihalogenodiphenyl sulfone represented by the formula (2): wherein x1 and x2 have the same meaning as above, in an amount exceeding 1 time by mole and not exceeding 1.05 time by mole based on said 4,4′-biphenol in diphenyl sulfone and in the presence of an alkali metal carbonate and/or an alkali metal bicarbonate at a temperature which is not lower than 240° C. and not higher than 270° C.Type: GrantFiled: September 10, 2002Date of Patent: December 7, 2004Assignee: Sumitomo Chemical Company, LimitedInventors: Kazushige Okamoto, Kunihisa Satoh
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Publication number: 20030114639Abstract: A process for producing an aromatic polyether having a high molecular weight, small dispersion of the molecular weight, excellent in the heat resistance as well as the impact resistance and represented by the formula (1): 1Type: ApplicationFiled: September 10, 2002Publication date: June 19, 2003Applicant: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Kazushige Okamoto, Kunihisa Satoh
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Patent number: 5600026Abstract: There is disclosed a process for the production of cresols, including the steps of: (a) conducting oxygenation of cymene with oxygen gas or an oxygen-containing gas, thereby obtaining a solution of oxygenation products containing tertiary and primary hydroperoxides of cymene; (b) reacting the solution of oxygenation products obtained in the step (a) with an organic quaternary ammonium salt and an alkali, or with an organic quaternary ammonium hydroxide, thereby decreasing the content of primary hydroperoxide; (c) subjecting the reaction mixture in the step (b) to decomposition in the presence of a catalyst; and (d) subjecting the decomposition mixture in the step (c) to hydrogenation, thereby obtaining the desired cresols.Type: GrantFiled: February 23, 1995Date of Patent: February 4, 1997Assignee: Sumitomo Chemical Company, LimitedInventors: Kiyoshi Ikimi, Yoichi Ikeda, Akira Murakami, Kazushige Okamoto, Tooru Tokumaru, Motoo Hazama
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Patent number: 5399791Abstract: There is disclosed a process for the production of cresols, including the steps of: (a) conducting oxygenation of cymene with oxygen gas or an oxygen-containing gas without any addition of an alkali, thereby obtaining a solution of oxygenation products containing tertiary and primary hydroperoxides of cymene; (b) washing the solution of oxygenation products obtained in step (a) with an aqueous alkali solution at a temperature in the range of from 10.degree. to 95.degree. C.; (c) subjecting the solution of oxygenation products obtained in step (b) to hydrogenation at a temperature in the range of from 60.degree. to 100.degree. C. to decrease the content of primary hydroperoxide in such a manner that the weight ratio of primary hydroperoxide to tertiary hydroperoxide is not greater than 1/25 (w/w); (d) subjecting the solution treated in step (c) to decomposition in the presence of a catalyst; and (e) subjecting the solution treated in step (d) to hydrogenation to obtain cresols.Type: GrantFiled: February 25, 1994Date of Patent: March 21, 1995Assignee: Suitomo Chemical Company, LimitedInventors: Kiyoshi Ikimi, Yoichi Ikeda, Akira Murakami, Kazushige Okamoto, Tooru Tokumaru, Motoo Hazama
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Patent number: D692464Type: GrantFiled: April 30, 2013Date of Patent: October 29, 2013Assignee: Caterpillar SARLInventors: Naoya Sumitani, Junji Mizugaki, Takahiro Sadamoto, Kazushige Okamoto, Kenji Yokohata, Yuuichi Hayata, Shigemi Togo
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Patent number: D692465Type: GrantFiled: April 30, 2013Date of Patent: October 29, 2013Assignee: Caterpillar SARLInventors: Naoya Sumitani, Junji Mizugaki, Takahiro Sadamoto, Kazushige Okamoto, Kenji Yokohata, Yuuichi Hayata, Masayuki Takano