Patents by Inventor Akio Hayakawa
Akio Hayakawa 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: 20240117169Abstract: A resin composition and a multilayer body that includes the resin composition layer, the resin composition being characterized by containing a propylene-based polymer (A) in the range of 5 to 70% by weight; a soft propylene-based polymer (B) in the range of 30 to 95% by weight; a propylene-based polymer (C) graft-modified with an ethylenically unsaturated monomer, in the range of 0.1 to 20% by weight; a polyethylene (D) in the range of 0 to 20% by weight; and an ethylene/?-olefin random copolymer (E) in the range of 1 to 30% by weight, provided that a total amount of (A), (B), (C), (D), and (E) is 100% by weight.Type: ApplicationFiled: February 22, 2022Publication date: April 11, 2024Applicant: MITSUI CHEMICALS, INC.Inventors: Akio HAYAKAWA, Koya YOSHIMOTO
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Patent number: 11873462Abstract: A lubricating oil composition with a resin (A) and a base oil (B), the resin (A) is in a range of 0.01 to 50 parts by mass per 100 parts of (A) and (B), the resin (A) satisfies the following requirements: (A-1) the resin (A) is a polymer including a constituent unit from 4-methyl-1-pentene in a range of 60 to 99 mol % and a constituent unit from an ?-olefin having 2 to 20 carbon atoms (excluding 4-methyl-1-pentene) in a range of 1 to 40 mol % (provided that 4-methyl-1-pentene and the ?-olefin is 100 mol %); (A-2) intrinsic viscosity [?] measured in decalin at 135° C. is in a range of 0.01 to 5.0 dl/g; (A-3) a melting point (Tm) is in a range of 110 to 150° C. as determined by DSC; and the base oil (B) has (B-1) kinematic viscosity at 100° C. is in a range of 1 to 50 mm2/s.Type: GrantFiled: August 26, 2020Date of Patent: January 16, 2024Assignee: MITSUI CHEMICALS, INC.Inventors: Akio Hayakawa, Shuhei Yamamoto, Akihiro Udagawa, Masahiro Yamashita, Yusuke Saito
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Patent number: 11655428Abstract: A lubricating oil composition includes an ethylene/?-olefin copolymer (A) having 70 to 90 mole % of structural units derived from ethylene and an intrinsic viscosity [?] of 0.3 to 1.0 dl/g.Type: GrantFiled: April 16, 2019Date of Patent: May 23, 2023Assignee: MITSUI CHEMICALS, INC.Inventors: Akio Hayakawa, Akihiro Udagawa, Noriko Kai, Yuji Tokunaga
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Publication number: 20220358313Abstract: A bias adjustment device uses an identification model developed by machine learning using training data, and includes a calculation unit that calculates first identification accuracy of the identification model trained on first training data and second identification accuracy of the identification model trained on second training data acquired by an adjustment of the number of pieces of data of the first training data, a prediction unit that predicts a change in identification accuracy with respect to the number of pieces of training data on the basis of the first identification accuracy and the second identification accuracy, and a control unit that adjusts the number of pieces of data used for the training or changes the identification model, on the basis of the predicted change in the identification accuracy, in such a manner that the predicted change in the identification accuracy becomes a predetermined target value.Type: ApplicationFiled: October 16, 2020Publication date: November 10, 2022Applicant: Sony Group CorporationInventors: Yoshiyuki KOBAYASHI, Andrew SHIN, Akio HAYAKAWA, Takayoshi TAKAYANAGI, Hirotaka SUZUKI
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Publication number: 20220275304Abstract: A lubricating oil composition with a resin (A) and a base oil (B), the resin (A) is in a range of 0.01 to 50 parts by mass per 100 parts of (A) and (B), the resin (A) satisfies the following requirements: (A-1) the resin (A) is a polymer including a constituent unit from 4-methyl-1-pentene in a range of 60 to 99 mol % and a constituent unit from an ?-olefin having 2 to 20 carbon atoms (excluding 4-methyl-1-pentene) in a range of 1 to 40 mol % (provided that 4-methyl-1-pentene and the ?-olefin is 100 mol %); (A-2) intrinsic viscosity [?] measured in decalin at 135° C. is in a range of 0.01 to 5.0 dl/g; (A-3) a melting point (Tm) is in a range of 110 to 150° C. as determined by DSC; and the base oil (B) has (B-1) kinematic viscosity at 100° C. is in a range of 1 to 50 mm2/s.Type: ApplicationFiled: August 26, 2020Publication date: September 1, 2022Applicant: MITSUI CHEMICALS, INC.Inventors: Akio HAYAKAWA, Shuhei YAMAMOTO, Akihiro UDAGAWA, Masahiro YAMASHITA, Yusuke SAITO
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Patent number: 11162050Abstract: An object of the present invention is to provide a lubricating oil composition particularly excellent in viscosity characteristics at a low temperature. The present invention provides: a lubricating oil composition including a polymer (A) and a base oil (B), wherein the polymer (A) satisfies the following requirement (A-1), and the content ratio of the polymer (A) and the base oil (B) is such that the ratio of a resin (A) is within the range of from 0.1 to 50 parts by mass with respect to 100 parts by mass of the total amount of the polymer (A) and the base oil (B). (A-1) The polymer (A) is a polymer containing a structural unit derived from an ?-olefin having 20 or less carbon atoms.Type: GrantFiled: December 26, 2017Date of Patent: November 2, 2021Assignee: MITSUI CHEMICALS, INC.Inventors: Akio Hayakawa, Shuhei Yamamoto, Takayuki Uekusa, Ikuko Ebisawa, Masahiro Yamashita, Toyoaki Sasaki
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Publication number: 20210130725Abstract: A lubricating oil composition includes an ethylene/?-olefin copolymer (A) having 70 to 90 mole % of structural units derived from ethylene and an intrinsic viscosity [?] of 0.3 to 1.0 dl/g.Type: ApplicationFiled: April 16, 2019Publication date: May 6, 2021Applicant: MITSUI CHEMICALS, INC.Inventors: Akio HAYAKAWA, Akihiro UDAGAWA, Noriko KAI, Yuji TOKUNAGA
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Publication number: 20200140776Abstract: An object of the present invention is to provide a lubricating oil composition particularly excellent in viscosity characteristics at a low temperature. The present invention provides: a lubricating oil composition including a polymer (A) and a base oil (B), wherein the polymer (A) satisfies the following requirement (A-1), and the content ratio of the polymer (A) and the base oil (B) is such that the ratio of a resin (A) is within the range of from 0.1 to 50 parts by mass with respect to 100 parts by mass of the total amount of the polymer (A) and the base oil (B). (A-1) The polymer (A) is a polymer containing a structural unit derived from an ?-olefin having 20 or less carbon atoms.Type: ApplicationFiled: December 26, 2017Publication date: May 7, 2020Applicant: MITSUI CHEMICALS, INC.Inventors: Akio HAYAKAWA, Shuhei YAMAMOTO, Takayuki UEKUSA, Ikuko EBISAWA, Masahiro YAMASHITA, Toyoaki SASAKI
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Publication number: 20180320102Abstract: A viscosity modifier for lubricating oils according to the present invention contains a resin (?), wherein the resin (?) satisfies specific requirements, and contains a grafted olefin polymer [R1] which is composed of a main chain and a side chain(s) and which satisfies the following requirements (i) and (ii). (i) The main chain is composed of a copolymer of ethylene and at least one ?-olefin selected from ?-olefins having from 3 to 12 carbon atoms, and contains the structural units derived from ethylene within the range of from 74 to 86 mol %. (ii) The side chain(s) is/are composed of a copolymer of ethylene and at least one ?-olefin selected from ?-olefins having from 3 to 12 carbon atoms, and contain(s) the structural units derived from ethylene within the range of from 30 to 65 mol %.Type: ApplicationFiled: November 7, 2016Publication date: November 8, 2018Applicant: MITSUI CHEMICALS, INC.Inventors: Akio HAYAKAWA, Yasushi YANAGIMOTO, Atsushi YAMAMOTO, Tatsuya NAKAMURA, Tomoaki MATSUGI, Keiji OKADA
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Publication number: 20120023281Abstract: A single-chip microcomputer comprising: a first bus having a central processing unit and a cache memory connected therewith; a second bus having a dynamic memory access control circuit and an external bus interface connected therewith; a break controller for connecting the first bus and the second bus selectively; a third bus having a peripheral module connected therewith and having a lower-speed bus cycle than the bus cycles of the first and second buses; and a bus state controller for effecting a data transfer and a synchronization between the second bus and the third bus. The single-chip microcomputer has the three divided internal buses to reduce the load capacity upon the signal transmission paths so that the signal transmission can be accomplished at a high speed. Moreover, the peripheral module required to have no operation speed is isolated so that the power dissipation can be reduced.Type: ApplicationFiled: March 24, 2011Publication date: January 26, 2012Inventors: Shumpei Kawasaki, Yasushi Akao, Kouki Noguchi, Atsushi Hasegawa, Hiroshi Ohsuga, Keiichi Kurakazu, Kiyoshi Matsubara, Akio Hayakawa, Yoshitaka Ito
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Publication number: 20080263228Abstract: A single-chip microcomputer comprising: a first bus having a central processing unit and a cache memory connected therewith; a second bus having a dynamic memory access control circuit and an external bus interface connected therewith; a break controller for connecting the first bus and the second bus selectively; a third bus having a peripheral module connected therewith and having a lower-speed bus cycle than the bus cycles of the first and second buses; and a bus state controller for effecting a data transfer and a synchronization between the second bus and the third bus. The single-chip microcomputer has the three divided internal buses to reduce the load capacity upon the signal transmission paths so that the signal transmission can be accomplished at a high speed. Moreover, the peripheral module required to have no operation speed is isolated so that the power dissipation can be reduced.Type: ApplicationFiled: May 5, 2008Publication date: October 23, 2008Inventors: Shumpei Kawasaki, Yasushi Akao, Kouki Noguchi, Atsushi Hasegawa, Hiroshi Ohsuga, Keiichi Kurakazu, Kiyoshi Matsubara, Akio Hayakawa, Yoshitaka Ito
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Publication number: 20040199716Abstract: A single-chip microcomputer comprising: a first bus having a central processing unit and a cache memory connected therewith; a second bus having a dynamic memory access control circuit and an external bus interface connected therewith; a break controller for connecting the first bus and the second bus selectively; a third bus having a peripheral module connected therewith and having a lower-speed bus cycle than the bus cycles of the first and second buses; and a bus state controller for effecting a data transfer and a synchronization between the second bus and the third bus. The single-chip microcomputer has the three divided internal buses to reduce the load capacity upon the signal transmission paths so that the signal transmission can be accomplished at a high speed. Moreover, the peripheral module required to have no operation speed is isolated so that the power dissipation can be reduced.Type: ApplicationFiled: April 13, 2004Publication date: October 7, 2004Inventors: Shumpei Kawasaki, Yasushi Akao, Kouki Noguchi, Atsushi Hasegawa, Hiroshi Ohsuga, Keiichi Kurakazu, Kiyoshi Matsubara, Akio Hayakawa, Yoshitaka Ito
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Patent number: 6748507Abstract: A single-chip microcomputer comprising: a first bus having a central processing unit and a cache memory connected therewith; a second bus having a dynamic memory access control circuit and an external bus interface connected therewith; a break controller for connecting the first bus and the second bus selectively; a third bus having a peripheral module connected therewith and having a lower-speed bus cycle than the bus cycles of the first and second buses; and a bus state controller for effecting a data transfer and a synchronization between the second bus and the third bus. The single-chip microcomputer has the three divided internal buses to reduce the load capacity upon the signal transmission paths so that the signal transmission can be accomplished at a high speed. Moreover, the peripheral module required to have no operation speed is isolated so that the power dissipation can be reduced.Type: GrantFiled: June 13, 2002Date of Patent: June 8, 2004Assignees: Hitachi, Ltd., Hitachi ULSI Engineering Corp.Inventors: Shumpei Kawasaki, Yasushi Akao, Kouki Noguchi, Atsushi Hasegawa, Hiroshi Ohsuga, Keiichi Kurakazu, Kiyoshi Matsubara, Akio Hayakawa, Yoshitaka Ito
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Patent number: 6735683Abstract: A single-chip microcomputer comprising: a first bus having a central processing unit and a cache memory connected therewith; a second bus having a dynamic memory access control circuit and an external bus interface connected therewith; a break controller for connecting the first bus and the second bus selectively; a third bus having a peripheral module connected therewith and having a lower-speed bus cycle than the bus cycles of the first and second buses; and a bus state controller for effecting a data transfer and a synchronization between the second bus and the third bus. The single-chip microcomputer has the three divided internal buses to reduce the load capacity upon the signal transmission paths so that the signal transmission can be accomplished at a high speed. Moreover, the peripheral module required to have no operation speed is isolated so that the power dissipation can be reduced.Type: GrantFiled: October 4, 2002Date of Patent: May 11, 2004Assignees: Hitachi, Ltd., Hitachi ULSI Engineering Corp.Inventors: Shumpei Kawasaki, Yasushi Akao, Kouki Noguchi, Atsushi Hasegawa, Hiroshi Ohsuga, Keiichi Kurakazu, Kiyoshi Matsubara, Akio Hayakawa, Yoshitaka Ito
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Publication number: 20030233527Abstract: A single-chip microcomputer comprising: a first bus having a central processing unit and a cache memory connected therewith; a second bus having a dynamic memory access control circuit and an external bus interface connected therewith; a break controller for connecting the first bus and the second bus selectively; a third bus having a peripheral module connected therewith and having a lower-speed bus cycle than the bus cycles of the first and second buses; and a bus state controller for effecting a data transfer and a synchronization between the second bus and the third bus. The single-chip microcomputer has the three divided internal buses to reduce the load capacity upon the signal transmission paths so that the signal transmission can be accomplished at a high speed. Moreover, the peripheral module required to have no operation speed is isolated so that the power dissipation can be reduced.Type: ApplicationFiled: October 4, 2002Publication date: December 18, 2003Inventors: Shumpei Kawasaki, Yasushi Akao, Kouki Noguchi, Atsushi Hasegawa, Hiroshi Ohsuga, Keiichi Kurakazu, Kiyoshi Matsubara, Akio Hayakawa, Yoshitaka Ito
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Patent number: 6591294Abstract: A single-chip microcomputer comprising: a first bus having a central processing unit and a cache memory connected therewith; a second bus having a dynamic memory access control circuit and an external bus interface connected therewith; a break controller for connecting the first bus and the second bus selectively; a third bus having a peripheral module connected therewith and having a lower-speed bus cycle than the bus cycles of the first and second buses; and a bus state controller for effecting a data transfer and a synchronization between the second bus and the third bus. The single-chip microcomputer has the three divided internal buses to reduce the load capacity upon the signal transmission paths so that the signal transmission can be accomplished at a high speed. Moreover, the peripheral module required to have no operation speed is isolated so that the power dissipation can be reduced.Type: GrantFiled: July 30, 2001Date of Patent: July 8, 2003Assignee: Hitachi, Ltd.Inventors: Shumpei Kawasaki, Yasushi Akao, Kouki Noguchi, Atsushi Hasegawa, Hiroshi Ohsuga, Keiichi Kurakazu, Kiyoshi Matsubara, Akio Hayakawa, Yoshitaka Ito
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Publication number: 20030046514Abstract: A single-chip microcomputer comprising: a first bus having a central processing unit and a cache memory connected therewith; a second bus having a dynamic memory access control circuit and an external bus interface connected therewith; a break controller for connecting the first bus and the second bus selectively; a third bus having a peripheral module connected therewith and having a lower-speed bus cycle than the bus cycles of the first and second buses; and a bus state controller for effecting a data transfer and a synchronization between the second bus and the third bus. The single-chip microcomputer has the three divided internal buses to reduce the load capacity upon the signal transmission paths so that the signal transmission can be accomplished at a high speed. Moreover, the peripheral module required to have no operation speed is isolated so that the power dissipation can be reduced.Type: ApplicationFiled: June 13, 2002Publication date: March 6, 2003Inventors: Shumpei Kawasaki, Yasushi Akao, Kouki Noguchi, Atsushi Hasegawa, Hiroshi Ohsuga, Keiichi Kurakazu, Kiyoshi Matsubara, Akio Hayakawa, Yoshitaka Ito
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Publication number: 20020007430Abstract: A single-chip microcomputer comprising: a first bus having a central processing unit and a cache memory connected therewith; a second bus having a dynamic memory access control circuit and an external bus interface connected therewith; a break controller for connecting the first bus and the second bus selectively; a third bus having a peripheral module connected therewith and having a lower-speed bus cycle than the bus cycles of the first and second buses; and a bus state controller for effecting a data transfer and a synchronization between the second bus and the third bus. The single-chip microcomputer has the three divided internal buses to reduce the load capacity upon the signal transmission paths so that the signal transmission can be accomplished at a high speed. Moreover, the peripheral module required to have no operation speed is isolated so that the power dissipation can be reduced.Type: ApplicationFiled: July 30, 2001Publication date: January 17, 2002Inventors: Shumpei Kawasaki, Yasushi Akao, Kouki Noguchi, Atsushi Hasegawa, Hiroshi Ohsuga, Keiichi Kurakazu, Kiyoshi Matsubara, Akio Hayakawa, Yoshitaka Ito
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Patent number: 6279063Abstract: A single-chip microcomputer comprising: a first bus having a central processing unit and a cache memory connected therewith; a second bus having a dynamic memory access control circuit and an external bus interface connected therewith; a break controller for connecting the first bus and the second bus selectively; a third bus having a peripheral module connected therewith and having a lower-speed bus cycle than the bus cycles of the first and second buses; and a bus state controller for effecting a data transfer and a synchronization between the second bus and the third bus. The single-chip microcomputer has the three divided internal buses to reduce the load capacity upon the signal transmission paths so that the signal transmission can be accomplished at a high speed. Moreover, the peripheral module required to have no operation speed is isolated so that the power dissipation can be reduced.Type: GrantFiled: December 10, 1999Date of Patent: August 21, 2001Assignee: Hitachi Ltd.Inventors: Shumpei Kawasaki, Yasushi Akao, Kouki Noguchi, Atsushi Hasegawa, Hiroshi Ohsuga, Keiichi Kurakazu, Kiyoshi Matsubara, Akio Hayakawa, Yoshitaka Ito
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Patent number: 6223265Abstract: A single-chip microcomputer comprising: a first bus having a central processing unit and a cache memory connected therewith; a second bus having a dynamic memory access control circuit and an external bus interface connected therewith; a break controller for connecting the first bus and the second bus selectively; a third bus having a peripheral module connected therewith and having a lower-speed bus cycle than the bus cycles of the first and second buses; and a bus state controller for effecting a data transfer and a synchronization between the second bus and the third bus. The single-chip microcomputer has the three divided internal buses to reduce the load capacity upon the signal transmission paths so that the signal transmission can be accomplished at a high speed. Moreover, the peripheral module required to have no operation speed is isolated so that the power dissipation can be reduced.Type: GrantFiled: November 13, 1998Date of Patent: April 24, 2001Assignee: Hitachi, Ltd.Inventors: Shumpei Kawasaki, Yasushi Akao, Kouki Noguchi, Atsushi Hasegawa, Hiroshi Ohsuga, Keiichi Kurakazu, Kiyoshi Matsubara, Akio Hayakawa, Yoshitaka Ito