Patents by Inventor Kunio Takiguchi
Kunio Takiguchi 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: 10927917Abstract: Provided is a shock absorber that includes a middle chamber formed by a piston, a first damping-force generating device that is provided between an upper chamber and the middle chamber and generates a damping force, a second damping-force generating device that is provided between a lower chamber and the middle chamber and generates a damping force, and a position-based state changing device that changes a state of a passage to a state in which the upper chamber and the lower chamber communicate with each other, a state in which the upper chamber and the middle chamber communicate with each other, or a state in which the lower chamber and the middle chamber communicate with each other depending on a position of the piston.Type: GrantFiled: August 25, 2015Date of Patent: February 23, 2021Assignee: HITACHI AUTOMOTIVE SYSTEMS, LTD.Inventors: Mikio Yamashita, Kunio Takiguchi
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Patent number: 10012283Abstract: A minimum length-side property in which an extension-side damping coefficient signifies a hard state in a range (Aa0) where the piston rod enters further inside the cylinder than a minimum length-side predetermined position (Sa1), and a maximum length-side property in which the extension-side damping coefficient signifies a soft state in a range (Aa4) where the piston rod extends further outside the cylinder than a maximum length-side predetermined position (Sa4) are included. An extension-side damping force property between the minimum length-side predetermined position (Sa1) and the maximum length-side predetermined position (Sa4) includes a part (Sa1 to Sa2, Sa3 to Sa4) in which a damping coefficient change rate with respect to a stroke of the piston rod is large and a part (Sa2 to Sa3) in which the damping coefficient change rate is small.Type: GrantFiled: March 27, 2014Date of Patent: July 3, 2018Assignee: Hitachi Automotive Systems, Ltd.Inventors: Mikio Yamashita, Kunio Takiguchi
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Publication number: 20170307044Abstract: Provided is a shock absorber that includes a middle chamber formed by a piston, a first damping-force generating device that is provided between an upper chamber and the middle chamber and generates a damping force, a second damping-force generating device that is provided between a lower chamber and the middle chamber and generates a damping force, and a position-based state changing device that changes a state of a passage to a state in which the upper chamber and the lower chamber communicate with each other, a state in which the upper chamber and the middle chamber communicate with each other, or a state in which the lower chamber and the middle chamber communicate with each other depending on a position of the piston.Type: ApplicationFiled: August 25, 2015Publication date: October 26, 2017Inventors: Mikio YAMASHITA, Kunio TAKIGUCHI
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Publication number: 20160040742Abstract: A minimum length-side property in which an extension-side damping coefficient signifies a hard state in a range (Aa0) where the piston rod enters further inside the cylinder than a minimum length-side predetermined position (Sa1), and a maximum length-side property in which the extension-side damping coefficient signifies a soft state in a range (Aa4) where the piston rod extends further outside the cylinder than a maximum length-side predetermined position (Sa4) are included. An extension-side damping force property between the minimum length-side predetermined position (Sa1) and the maximum length-side predetermined position (Sa4) includes a part (Sa1 to Sa2, Sa3 to Sa4) in which a damping coefficient change rate with respect to a stroke of the piston rod is large and a part (Sa2 to Sa3) in which the damping coefficient change rate is small.Type: ApplicationFiled: March 27, 2014Publication date: February 11, 2016Inventors: Mikio YAMASHITA, Kunio TAKIGUCHI
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Patent number: 9139065Abstract: A shock absorber includes a first passage (111) or (112) and a second passage (32), (99) or (235) in communication with each other and configured to allow a working fluid to flow between two chambers (16) and (17) based on movement of a piston (15), and a passage area adjustment mechanism (101) or (236) configured to adjust a passage area of the second passage (99) or (235) depending on a position of a piston rod (18) is installed to have at least one of a maximum length-side property in which an extension-side damping force becomes soft and a compression-side damping force becomes hard in a range in which the piston rod (18) extends to an outside of a cylinder (11) farther than a maximum length-side predetermined position, and a minimum length-side property in which the extension-side damping force becomes hard and the compression-side damping force becomes soft in a range in which the piston rod (18) enters an inside of the cylinder (11) further than a minimum length side predetermined position.Type: GrantFiled: November 28, 2012Date of Patent: September 22, 2015Assignee: HITACHI AUTOMOTIVE SYSTEMS, LTD.Inventors: Mikio Yamashita, Fumiyuki Yamaoka, Masaru Kouyama, Kunio Takiguchi, Atsufumi Ishimoto
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Publication number: 20140252735Abstract: A shock absorber includes a first passage (111) or (112) and a second passage (32), (99) or (235) in communication with each other and configured to allow a working fluid to flow between two chambers (16) and (17) based on movement of a piston (15), and a passage area adjustment mechanism (101) or (236) configured to adjust a passage area of the second passage (99) or (235) depending on a position of a piston rod (18) is installed to have at least one of a maximum length-side property in which an extension-side damping force becomes soft and a compression-side damping force becomes hard in a range in which the piston rod (18) extends to an outside of a cylinder (11) farther than a maximum length-side predetermined position, and a minimum length-side property in which the extension-side damping force becomes hard and the compression-side damping force becomes soft in a range in which the piston rod (18) enters an inside of the cylinder (11) further than a minimum length side predetermined position.Type: ApplicationFiled: November 28, 2012Publication date: September 11, 2014Inventors: Mikio Yamashita, Fumiyuki Yamaoka, Masaru Kouyama, Kunio Takiguchi, Atsufumi Ishimoto
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Patent number: 6953590Abstract: A preparation for transdermal absorption is disclosed which is suited for alleviating lasting pains caused by herpes zoster or postherpetic neuralgia and is practical and more improved in drug efficacy, safety and application characteristics. This tape preparation for transdermal absorption is obtained by causing an adhesive mass prepared by incorporating 1–30 parts by weight of a local anesthetic as an active ingredient in 100 parts by weight of a nonaqueous adhesive mass base comprising 5–50% by weight of a styrene-isoprene-styrene block copolymer, 1–60% by weight of an alicyclic saturated hydrocarbon resin, 5–60% by weight of liquid paraffin and 1–30% by weight of butyl rubber to be supported on a backing.Type: GrantFiled: September 9, 1999Date of Patent: October 11, 2005Assignees: Yutoku Pharmaceutical Ind. Co., Ltd., Maruho Kabushiki KaishaInventors: Yukino Owaki, Michiyo Hashimoto, Isamu Sakamoto, Kunio Takiguchi, Yoetsu Toyoshima