Patents by Inventor Hiroaki Shimizu

Hiroaki Shimizu 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).

  • Oil Immersed Solenoid
    Publication number: 20110163617
    Abstract: An oil immersed solenoid capable of easily and quickly removing air and air bubbles in oil in a space accommodating a movable core and preventing the air and the like from accumulating in the space. In an oil immersed solenoid in which a movable core is accommodated in a space of a tubular second guide so as to be movable in an axial direction of the second guide and the movable core is pulled by a fixed magnetic pole portion provided to be spaced apart from a tip end portion of the second guide, an air accumulation preventing portion is provided between the tip end portion of the second guide and a convex portion of a rear end portion of the fixed magnetic pole portion, and the second guide is made of a magnetic material and the air accumulation preventing portion is made of a non-magnetic material.
    Type: Application
    Filed: August 21, 2009
    Publication date: July 7, 2011
    Applicant: KAWASAKI JUKOGYO KABUSHIKI KAISHA
    Inventor: Hiroaki Shimizu
  • Resist composition and method of forming resist pattern
    Patent number: 7960091
    Abstract: A resist composition comprising a base component (A) which exhibits changed solubility in an alkali developing solution under action of acid, an acid-generator component (B) which generates acid upon exposure, and a nitrogen-containing organic compound (D), the nitrogen-containing organic compound (D) including a nitrogen-containing polymeric compound (D1) having a structural unit (d0) containing a nitrogen atom in the side chain thereof.
    Type: Grant
    Filed: January 19, 2009
    Date of Patent: June 14, 2011
    Assignee: Tokyo Ohka Kogyo Co., Ltd.
    Inventors: Hiroaki Shimizu, Tsuyoshi Nakamura, Takahiro Dazai
  • RESIST COMPOSITION AND METHOD OF FORMING RESIST PATTERN
    Publication number: 20110117491
    Abstract: A resist composition including a base material component (A) that exhibits changed solubility in an alkali developing solution under the action of acid, an acid generator component (B) that generates acid upon exposure, and an nitrogen-containing organic compound (D), wherein the nitrogen-containing organic compound (D) includes a compound represented by general formula (d1) shown below: wherein R20 represents a methylene group, an ethylene group, an oxygen atom or —C(CH3)2—; R21 represents a hydrogen atom or an organic group; and R22 represents an alkoxy group, an alkoxycarbonyloxy group, a hydroxyl group, a halogen atom, —C(?O)—O—R23, —C(?O)—NH—R23 or a carboxyl group, wherein R23 represents a linear or branched alkyl group of 1 to 15 carbon atoms, an unsaturated hydrocarbon group, an aliphatic cyclic group, or an aromatic hydrocarbon group, and a represents an integer of 0 to 2.
    Type: Application
    Filed: August 23, 2010
    Publication date: May 19, 2011
    Applicant: TOKYO OHKA KOGYO CO., LTD.
    Inventors: Yoshiyuki UTSUMI, Takehiro SESHIMO, Hiroaki SHIMIZU, Naoto MOTOIKE
  • Resist composition, method of forming resist pattern, novel compound and method of producing the same, and acid generator
    Patent number: 7927780
    Abstract: A compound represented by formula (I); and a compound represented by formula (b1-1): wherein X represents —O—, —S—, —O—R3— or —S—R4—, wherein each of R3 and R4 independently represents an alkylene group of 1 to 5 carbon atoms; R2 represents an alkyl group of 1 to 6 carbon atoms, an alkoxy group of 1 to 6 carbon atoms, a halogenated alkyl group of 1 to 6 carbon atoms, a halogen atom, a hydroxyalkyl group of 1 to 6 carbon atoms, a hydroxyl group or a cyano group; a represents an integer of 0 to 2; Q1 represents an alkylene group of 1 to 12 carbon atoms or a single bond; Y1 represents an alkylene group of 1 to 4 carbon atoms or a fluorinated alkylene group; M+ represents an alkali metal ion; and A+ represents an organic cation.
    Type: Grant
    Filed: September 10, 2008
    Date of Patent: April 19, 2011
    Assignee: Tokyo Ohka Kogyo Co., Ltd.
    Inventors: Akiya Kawaue, Takeshi Iwai, Hideo Hada, Shinichi Hidesaka, Tsuyoshi Kurosawa, Natsuko Maruyama, Kensuke Matsuzawa, Takehiro Seshimo, Hiroaki Shimizu, Tsuyoshi Nakamura
  • Positive resist composition, method of forming resist pattern, polymeric compound, and compound
    Patent number: 7919651
    Abstract: A compound represented by general formula (I) shown below; and a polymeric compound having a structural unit (a0) represented by general formula (a0-1) shown below: wherein R1 represents a hydrogen atom, a lower alkyl group or a halogenated lower alkyl group; A represents a divalent hydrocarbon group of 2 or more carbon atoms which may have a substituent; B represents a divalent hydrocarbon group of 1 or more carbon atoms which may have a substituent; and R2 represents an acid dissociable, dissolution inhibiting group.
    Type: Grant
    Filed: August 6, 2009
    Date of Patent: April 5, 2011
    Assignee: Tokyo Ohka Kogyo Co., Ltd.
    Inventors: Daiju Shiono, Takahiro Dazai, Hiroaki Shimizu
  • Transaxle with brake
    Patent number: 7913816
    Abstract: A transaxle has an axle, an input shaft drivingly connected to a prime mover and a brake disposed around the input shaft so as to brake the input shaft. A reduction drive train is drivingly interposed between the input shaft and the axle. The transaxle also has a reduction casing incorporating the reduction drive train and a lube sump provided in the reduction casing. A delivery opening is located at an outer peripheral side surface of the input shaft so as to deliver lube to the brake. The transaxle also has a brake lube passage provided in the input shaft so as to be connected to the delivery opening and lube introduction means for supplying lube from the lube sump to the brake lube passage.
    Type: Grant
    Filed: July 11, 2006
    Date of Patent: March 29, 2011
    Assignee: Kanzaki Kokyukoki Mfg. Co., Ltd.
    Inventors: Hiroaki Shimizu, Toshiyuki Hasegawa
  • Positive resist composition for immersion exposure and method of forming resist pattern
    Patent number: 7910285
    Abstract: A positive resist composition for immersion exposure including a resin component (A) which has an acid dissociable dissolution inhibiting group and exhibits increased alkali solubility under action of acid and an acid-generator component (B) which generates acid upon exposure, the resin component (A) including a structural unit (a1) derived from an acrylate ester having an acid dissociable, dissolution inhibiting group and a structural unit (a3) derived from an acrylate ester having a polar group-containing aliphatic hydrocarbon group, the amount of the structural unit (a3) based on the combined total of all structural units constituting the resin component (A) being 3 to 12 mol %.
    Type: Grant
    Filed: November 16, 2006
    Date of Patent: March 22, 2011
    Assignee: Tokyo Ohka Kogyo Co., Ltd.
    Inventor: Hiroaki Shimizu
  • INNER EDGE OF RECIPROCATING ELECTRIC SHAVER
    Publication number: 20100325893
    Abstract: An inner edge of a reciprocating electric shaver includes an inner edge body, and an inner edge joint that supports the inner edge body, the inner edge body having a plurality of edge pieces which have an inverse U shape, slide along an inner surface of an outer edge, and cut beard. Then, in the inner edge joint, there are provided: a plurality of vibration plates which is connected to any of the plurality of edge pieces, and generates a shaving sound at a time of cutting the beard; and a support portion that supports the respective vibration plates, and the support portion is adapted to support a single point of each of the vibration plates.
    Type: Application
    Filed: July 3, 2008
    Publication date: December 30, 2010
    Applicant: PANASONIC ELECTRIC WORKS CO., LTD.
    Inventors: Shunsuke Komori, Hiroaki Shimizu, Takeshi Shiba, Jyuzaemon Iwasaki
  • Resin for photoresist composition, photoresist composition and method for forming resist pattern
    Patent number: 7829259
    Abstract: A resin for photoresist compositions is disclosed with excellent resolution and line edge roughness characteristics. A photoresist composition and a method for forming a resist pattern using such a resin are also disclosed. The resin has a hydroxyl group bonded to a carbon atom at a polymer terminal, and the carbon atom in the ?-position to the hydroxyl group has at least one electron attractive group.
    Type: Grant
    Filed: February 4, 2009
    Date of Patent: November 9, 2010
    Assignee: Tokyo Ohka Kogyo Co., Ltd.
    Inventors: Hideo Hada, Masaru Takeshita, Shogo Matsumaru, Hiroaki Shimizu
  • POLYMER COMPOUND, POSITIVE RESIST COMPOSITION, AND METHOD OF FORMING RESIST PATTERN
    Publication number: 20100248148
    Abstract: There is provided a positive resist composition including a resin component (A) which displays increased solubility in an alkali developing solution under action of acid, and an acid generator component (B) which generates an acid upon exposure, wherein the resin component (A) includes a polymer compound (A1) containing a structural unit (a0) represented by a general formula (a0-1) shown below, and a structural unit (a1) derived from an acrylate ester which has an acid dissociable, dissolution inhibiting group: (in the formula (a0-1), R represents a hydrogen atom, a lower alkyl group, or a halogenated lower alkyl group; two of R? each independently represents a hydrogen atom, a lower alkyl group, or an alkoxy group of 1 to 5 carbon atoms; X represents an alkylene group of 1 to 5 carbon atoms, an oxygen atom, or a sulfur atom.).
    Type: Application
    Filed: June 11, 2010
    Publication date: September 30, 2010
    Applicant: TOKYO OHKA KOGYO CO., LTD.
    Inventors: Takahiro DAZAI, Takayoshi MORI, Hiroaki SHIMIZU, Kyoko OHSHITA
  • POSITIVE RESIST COMPOSITION AND METHOD OF FORMING RESIST PATTERN
    Publication number: 20100233626
    Abstract: A positive resist composition including a polymeric compound (A1) having a structural unit (a0) represented by general formula (a0-1) (R represents a hydrogen atom, an alkyl group of 1 to 5 carbon atoms or a halogenated alkyl group of 1 to 5 carbon atoms, R2 represents a divalent linking group, R3 represents a cyclic group containing —SO2— within the ring skeleton thereof) and a structural unit (a1) derived from an acrylate ester containing an acid dissociable, dissolution inhibiting group, an acid-generator component (B) and a fluorine-containing polymeric compound (F1) having a structural unit containing a base dissociable group.
    Type: Application
    Filed: March 10, 2010
    Publication date: September 16, 2010
    Applicant: TOKYO OHKA KOGYO CO., LTD.
    Inventors: Hiroaki Shimizu, Hideto Nito, Junichi Tsuchiya, Takahiro Dazai
  • POSITIVE RESIST COMPOSITION AND METHOD OF FORMING RESIST PATTERN
    Publication number: 20100233623
    Abstract: A positive resist composition including: a polymeric compound (A1) having a structural unit (a0) that contains a “cyclic group containing —SO2—” on the side chain terminal, and a structural unit (a1) derived from an acrylate ester containing an acid dissociable, dissolution inhibiting group; an acid generator component (B); and a fluorine-containing resin component having a structural unit (f1) represented by general formula (f1-0): wherein R represents a hydrogen atom, an alkyl group of 1 to 5 carbon atoms or a halogenated alkyl group of 1 to 5 carbon atoms; Q0 represents a single bond or a divalent linking group having a fluorine atom; and RX0 represents an acid dissociable, dissolution inhibiting group-containing group which may contain a fluorine atom, with the provision that at least one fluorine atom is contained in formula (f1-0).
    Type: Application
    Filed: March 4, 2010
    Publication date: September 16, 2010
    Applicant: TOKYO OHKA KOGYO CO., LTD.
    Inventors: Tsuyoshi Kurosawa, Hiroaki Shimizu
  • Resist composition, method of forming resist pattern, compound and acid generator
    Patent number: 7776510
    Abstract: A compound represented by general formula (b-14); and acid generator consisting of the compound; and a resist composition including a base component (A) which exhibits changed solubility in an alkali developing solution under action of acid and an acid-generator component (B) which generates acid upon exposure, the acid-generator component (B) including an acid generator (B1) consisting of a compound represented by general formula (b1-14): wherein R7? to R9? each independently represents an aryl group or an alkyl group, wherein two of R7? to R9? may be bonded to each other to form a ring with the sulfur atom, and at least one of R7? to R9? represents a substituted aryl group in which a portion or all of the hydrogen atoms are substituted with an alkoxyalkyloxy group or an alkoxycarbonylalkyloxy group; and X? represents an anion.
    Type: Grant
    Filed: June 9, 2008
    Date of Patent: August 17, 2010
    Assignee: Tokyo Ohka Kogyo Co., Ltd.
    Inventors: Takeshi Iwai, Hideo Hada, Keita Ishiduka, Akiya Kawaue, Hiroaki Shimizu, Kyoko Ohshita, Tsuyoshi Nakamura, Komei Hirahara, Yuichi Suzuki, Takehiro Seshimo
  • PIPE PROVIDED WITH CORROSION PREVENTION LAYER ON THE OUTSIDE SURFACE, PROCESS FOR PRODUCTION OF THE SAME, AND PROCESS FOR PRODUCTION OF ALLOY WIRES TO BE USED FOR CORROSION PREVENTION OF OUTSIDE SURFACE OF THE PIPE
    Publication number: 20100193063
    Abstract: Disclosed is a pipe made of an iron-base material, having a corrosion prevention layer formed on the surface thereof. The corrosion prevention layer includes a Zn—Sn sprayed coating including Sn in a content of more than 1% by mass and less than 50% by mass and the balance composed of Zn. Alternatively, the corrosion prevention layer includes a Zn—Sn—Mg sprayed coating including Sn in a content of more than 1% by mass and less than 50% by mass, Mg in a content of more than 0.01% by mass and less than 5% by mass and the balance composed of Zn. Preferably, the sprayed coating of the corrosion prevention layer includes at least any one of Ti, Co, Ni and P, and the content of each of these elements is more than 0.001% by mass and less than 3% by mass.
    Type: Application
    Filed: March 18, 2009
    Publication date: August 5, 2010
    Inventors: Hiroaki Shimizu, Goro Funahashi, Hiroaki Fujii
  • Polymer compound, positive resist composition, and method of forming resist pattern
    Patent number: 7767379
    Abstract: There is provided a positive resist composition including a resin component (A) which displays increased solubility in an alkali developing solution under action of acid, and an acid generator component (B) which generates an acid upon exposure, wherein the resin component (A) includes a polymer compound (A1) containing a structural unit (a0) represented by a general formula (a0-1) shown below, and a structural unit (a1) derived from an acrylate ester which has an acid dissociable, dissolution inhibiting group: (in the formula (a0-1), R represents a hydrogen atom, a lower alkyl group, or a halogenated lower alkyl group; two of R? each independently represents a hydrogen atom, a lower alkyl group, or an alkoxy group of 1 to 5 carbon atoms; X represents an alkylene group of 1 to 5 carbon atoms, an oxygen atom, or a sulfur atom.).
    Type: Grant
    Filed: September 4, 2008
    Date of Patent: August 3, 2010
    Assignee: Tokyo Ohka Kogyo Co., Ltd.
    Inventors: Takahiro Dazai, Takayoshi Mori, Hiroaki Shimizu, Kyoko Oshita
  • Method for producing resist composition and resist composition
    Patent number: 7767378
    Abstract: A method for producing a resist composition including a resin component (A) that exhibits changed alkali solubility under the action of acid and an acid generator component (B) that generates acid upon exposure, the method including the steps of: obtaining the component (A) by mixing a plurality of copolymers, which are composed of the same structural units but have mutually different measured values for the contact angle.
    Type: Grant
    Filed: November 4, 2005
    Date of Patent: August 3, 2010
    Assignee: Tokyo Ohka Kogyo Co., Ltd.
    Inventors: Hiroaki Shimizu, Masaru Takeshita
  • ELECTRIC SHAVER
    Publication number: 20100180448
    Abstract: In an electric shaver moving inner blades reciprocally and linearly, outer blades which are elongated in longitudinal direction are respectively held on outer blade frames and the outer blade frames are further held in floatable in floating direction on a frame holder. An outer blade mounting base has a pair of protrusions formed at positions near to both ends thereof in the longitudinal direction to protrude in the floating direction and the frame holder has a pair of end walls arranged in parallel in the longitudinal direction and a pair of engaging rims formed at both ends in the longitudinal direction. The engaging rims enclose the protrusions so as to position the frame holder to the outer blade mounting base when the frame holder is attached to the outer blade mounting base.
    Type: Application
    Filed: January 14, 2010
    Publication date: July 22, 2010
    Applicant: PANASONIC ELECTRIC WORKS CO., LTD.
    Inventors: Masaaki SATO, Hiroaki SHIMIZU, Shin HOSOKAWA, Takeshi SHIBA
  • BLADE OF RECIPROCATING ELECTRIC SHAVER
    Publication number: 20100180446
    Abstract: A blade of a reciprocating electric shaver includes a newly provided guide frame (8) freely detachably held on a holding frame (7) provided on a shaver body, in which, in the guide frame (8), there are provided: coupling portions (9) to which an outer edge frame (2) that fixes an outer edge (1) thereto is coupled; and spring receiving portions (10) which support lower ends of inner edge push-up springs (5).
    Type: Application
    Filed: July 3, 2008
    Publication date: July 22, 2010
    Applicant: PANASONIC ELECTRIC WORKS CO., LTD.
    Inventors: Hiroaki Shimizu, Shunsuke Komori, Takeshi Shiba, Jyuzaemon Iwasaki
  • ELECTRIC SHAVER
    Publication number: 20100175262
    Abstract: An electric shaver includes a grip unit capable of being held in one hand, a head unit supported above the grip unit, a blade section provided in the head unit and having an outer blade and an inner blade for shaving, and a connecting section provided at a top of the grip unit and protruded toward a rear face side of the grip unit. The head unit is provided on the connecting section. According to the electric shaver, the grip unit can be held firmly in one hand and the blade section can be pressed onto a skin firmly.
    Type: Application
    Filed: December 22, 2009
    Publication date: July 15, 2010
    Applicant: PANASONIC ELECTRIC WORKS CO., LTD.
    Inventors: Hiroshi SHIGETA, Shin HOSOKAWA, Hiroaki SHIMIZU
  • ELECTRIC SHAVER
    Publication number: 20100175263
    Abstract: An electric shaver includes a rod-shaped body part, a head part, and a link mechanism. The head part projects from one end portion, in a longitudinal direction, of the body part and is swingably attached to the body part with a support base between the body part and the head part. The head part includes a shaving portion and a drive mechanism. The shaving portion is formed to be elongated in a direction orthogonal to a projecting direction of the head part and has paired blades configured to operate relative to each other. The drive mechanism is configured to drive at least one of the paired blades. The link mechanism includes two link arms each connected to the support base and the head part respectively at connecting axes parallel to a longitudinal direction of the shaving portion. The link mechanism is configured to support the head part on the support base swingably.
    Type: Application
    Filed: December 22, 2009
    Publication date: July 15, 2010
    Applicant: PANASONIC ELECTRIC WORKS CO., LTD.
    Inventors: Hiroaki SHIMIZU, Hiroshi SHIGETA, Shin HOSOKAWA, Jyuzaemon IWASAKI