Patents by Inventor Hiroshi Shiozaki
Hiroshi Shiozaki 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: 20240101799Abstract: [Problem] To provide a laminate having a polar resin layer, which is excellent in transparency and mechanical strength (in particular impact resistance), and a polar resin composition for forming the polar resin layer of the laminate having such properties. [Solution] A polar resin composition including 5 to 30% by mass of an ethylenic polymer (A), 40 to 85% by mass of a polar resin component (B), and 10 to 40% by mass of a modified ethylene/?-olefin copolymer (C) obtained by modifying an ethylene/?-olefin copolymer (CO) with an unsaturated carboxylic acid or a derivative thereof and having a melt flow rate (190° C., 2.16 kg load) of 0.1 to 50 g/10 minutes, provided that the sum of proportions of the (A), (B), and (C) is 100% by mass.Type: ApplicationFiled: March 9, 2022Publication date: March 28, 2024Applicant: MITSUI CHEMICALS, INC.Inventors: Nao SHIOZAKI, Kiminori NODA, Makoto EGAWA, Yuki KAI, Hiroshi HOYA
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Patent number: 8348646Abstract: A variable displacement vane pump includes a first and a second fluid pressure chamber (31,32) where the cam ring (4) is made eccentric to the rotor (2) by a pressure difference between the first and the second fluid pressure chamber (31,32), a control valve (21) for controlling a pressure of the first and the second fluid pressure chamber (31,32) so that an eccentric amount of the cam ring (4) is reduced to be small with an increase in a rotation speed of the rotor (2), a pressure applying section (36) for applying a pressure to the cam ring (4) in a direction of increasing the eccentric amount all the time, and a cam ring movement restricting portion (12) for defining a minimum eccentric amount of the cam ring (4) by restricting the movement of the cam ring (4) in a direction of decreasing the eccentric amount.Type: GrantFiled: April 13, 2009Date of Patent: January 8, 2013Assignee: Kayaba Industry Co., Ltd.Inventors: Tomoyuki Fujita, Masamichi Sugihara, Hiroshi Shiozaki, Koichiro Akatsuka
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Patent number: 8342817Abstract: A variable displacement vane pump includes a first and a second fluid pressure chamber (31,32) where the cam ring (4) is made eccentric to the rotor (2) by a pressure difference between the first and the second fluid pressure chamber (31,32), a control valve (21) for controlling a pressure of the first and the second fluid pressure chamber (31,32) so that an eccentric amount of the cam ring (4) is reduced to be small with an increase in a rotation speed of the rotor (2), and a flow amount limiting member (22e) for limiting a discharge flow amount of the operating fluid in the second fluid pressure chamber (32) at the time the eccentric amount of the cam ring (4) to the rotor (2) becomes small by supplying the operating fluid to the first fluid pressure chamber (31) and by discharging the operating fluid from the second fluid pressure chamber (32).Type: GrantFiled: April 20, 2009Date of Patent: January 1, 2013Assignee: Kayaba Industry Co., Ltd.Inventors: Tomoyuki Fujita, Masamichi Sugihara, Hiroshi Shiozaki, Koichiro Akatsuka
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Patent number: 8342826Abstract: A variable capacity vane pump (100) has a pump housing (10) having a high-load bearing part (10a) on which a higher load is exerted than another part when the pump vane pump (100) operates. A control valve (21) for varying a capacity of the vane pump (100) is provided in a valve housing (28) which is formed integrally in the pump housing (10). By arranging the valve housing (28) on the same side of the pump housing (10) as the high-load bearing part (10a) with respect to the rotation axis of the vane pump (100), the high-load bearing part (10a) can be reinforced without increasing the size of the vane pump (100).Type: GrantFiled: August 7, 2009Date of Patent: January 1, 2013Assignee: Kayaba Industry Co., Ltd.Inventors: Tomoyuki Fujita, Masamichi Sugihara, Hiroshi Shiozaki, Koichiro Akatsuka
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Patent number: 7841846Abstract: A vane pump according to the present invention is characterized in that a position of a first suction port located in the forward rotation direction of a rotor is brought closer to a suction port than a position of a second suction port located in the backward rotation direction of the rotor with the suction port as reference by positioning a side plate in the state where the discharge port is brought close to a mounting portion.Type: GrantFiled: February 24, 2009Date of Patent: November 30, 2010Assignee: Kayaba Industry Co., LtdInventors: Tomoyuki Fujita, Hiroshi Shiozaki, Tomomi Noda, Eishin Noguchi, Shinji Yakabe
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Publication number: 20100034681Abstract: A variable capacity vane pump (100) has a pump housing (10) having a high-load bearing part (10a) on which a higher load is exerted than another part when the pump vane pump (100) operates. A control valve (21) for varying a capacity of the vane pump (100) is provided in a valve housing (28) which is formed integrally in the pump housing (10). By arranging the valve housing (28) on the same side of the pump housing (10) as the high-load bearing part (10a) with respect to the rotation axis of the vane pump (100), the high-load bearing part (10a) can be reinforced without increasing the size of the vane pump (100).Type: ApplicationFiled: August 7, 2009Publication date: February 11, 2010Applicant: KAYABA INDUSTRY CO., LTD.Inventors: Tomoyuki Fujita, Masamichi Sugihara, Hiroshi Shiozaki, Koichiro Akatsuka
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Publication number: 20090269233Abstract: A variable displacement vane pump includes a first and a second fluid pressure chamber (31,32) where the cam ring (4) is made eccentric to the rotor (2) by a pressure difference between the first and the second fluid pressure chamber (31,32), a control valve (21) for controlling a pressure of the first and the second fluid pressure chamber (31,32) so that an eccentric amount of the cam ring (4) is reduced to be small with an increase in a rotation speed of the rotor (2), and a flow amount limiting member (22e) for limiting a discharge flow amount of the operating fluid in the second fluid pressure chamber (32) at the time the eccentric amount of the cam ring (4) to the rotor (2) becomes small by supplying the operating fluid to the first fluid pressure chamber (31) and by discharging the operating fluid from the second fluid pressure chamber (32).Type: ApplicationFiled: April 20, 2009Publication date: October 29, 2009Applicant: KAYABA INDUSTRY CO., LTD.Inventors: Tomoyuki Fujita, Masamichi Sugihara, Hiroshi Shiozaki, Koichiro Akatsuka
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Publication number: 20090257899Abstract: A variable displacement vane pump includes a first and a second fluid pressure chamber (31,32) where the cam ring (4) is made eccentric to the rotor (2) by a pressure difference between the first and the second fluid pressure chamber (31,32), a control valve (21) for controlling a pressure of the first and the second fluid pressure chamber (31,32) so that an eccentric amount of the cam ring (4) is reduced to be small with an increase in a rotation speed of the rotor (2), a pressure applying section (36) for applying a pressure to the cam ring (4) in a direction of increasing the eccentric amount all the time, and a cam ring movement restricting portion (12) for defining a minimum eccentric amount of the cam ring (4) by restricting the movement of the cam ring (4) in a direction of decreasing the eccentric amount.Type: ApplicationFiled: April 13, 2009Publication date: October 15, 2009Applicant: KAYABA INDUSTRY CO., LTD.Inventors: Tomoyuki Fujita, Masamichi Sugihara, Hiroshi Shiozaki, Koichiro Akatsuka
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Publication number: 20090162230Abstract: A vane pump according to the present invention is characterized in that a position of a first suction port located in the forward rotation direction of a rotor is brought closer to a suction port than a position of a second suction port located in the backward rotation direction of the rotor with the suction port as reference by positioning a side plate in the state where the discharge port is brought close to a mounting portion.Type: ApplicationFiled: February 24, 2009Publication date: June 25, 2009Inventors: Tomoyuki Fujita, Hiroshi Shiozaki, Tomomi Noda, Eishin Noguchi, Shinji Yakabe
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Publication number: 20070134120Abstract: A vane pump according to the present invention is characterized in that a position of a first suction port located in the forward rotation direction of a rotor is brought closer to a suction port than a position of a second suction port located in the backward rotation direction of the rotor with the suction port as reference by positioning a side plate in the state where the discharge port is brought close to a mounting portion.Type: ApplicationFiled: December 12, 2006Publication date: June 14, 2007Inventors: Tomoyuki Fujita, Hiroshi Shiozaki, Tomomi Noda, Eishin Noguchi, Shinji Yakabe
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Patent number: 5309422Abstract: A light separating element designed to have parallel first and second external surfaces, a first polarizing film disposed on the first external surface and arranged to reflect a first portion of a first component in a first direction and transmit a second portion of the first component and all of a second component in a second direction. Further, a second polarizing film can be disposed on a second external surface which reflects a first portion of the second component in a third direction and transmits a second portion of the first and second components in a fourth direction. Further, the first portion of the second component is reflected by the second polarizing film to strike the first polarizing film. The first polarizing film transmitting a first portion of the second component in a fifth direction or a reflecting surface disposed on the second external surface and arranged to reflect a second portion of a first component and all of a second component in a third direction toward the polarizing film.Type: GrantFiled: June 2, 1992Date of Patent: May 3, 1994Assignee: Alps Electric Co., Ltd.Inventors: Kazuhiko Kuroki, Hiroshi Shiozaki