Patents by Inventor Yusuke Fuji
Yusuke Fuji 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: 10801908Abstract: A pressure sensor including: a cylindrical casing extending in an axial direction; a diaphragm joined to the distal end side of the casing, extending in a direction intersecting the axis of the casing and deforming in accordance with pressure received on the distal end side; and a sensor section disposed inside the casing and outputting an electric signal corresponding to the deformation of the diaphragm. The diaphragm is provided with a plate-shaped base part and three or more protruding parts protruding from the distal end side surface of the base part toward the distal end side and set apart from each other. The relationships 0.05?H?2.5T and 0.05?(S2/S1)?0.8 are satisfied, where T (thickness), H (length), S1 (area of base distal end surface) and S2 (total area of protruding distal end surfaces) are as defined herein.Type: GrantFiled: December 8, 2016Date of Patent: October 13, 2020Assignee: NGK SPARK PLUG CO., LTD.Inventors: Yusuke Fuji, Tatsunori Yamada, Daiki Goto, Junki Iwabuchi
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Patent number: 10766992Abstract: A resin containing a structural unit derived from a compound represented by the formula (aa) wherein T, R1 and Z1 are defined in the specification.Type: GrantFiled: January 23, 2015Date of Patent: September 8, 2020Assignee: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Koji Ichikawa, Yusuke Fuji, Satoshi Yamaguchi
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Publication number: 20200200636Abstract: A pressure sensor including: a cylindrical casing extending in an axial direction; a diaphragm joined to the distal end side of the casing, extending in a direction intersecting the axis of the casing and deforming in accordance with pressure received on the distal end side; and a sensor section disposed inside the casing and outputting an electric signal corresponding to the deformation of the diaphragm. The diaphragm is provided with a plate-shaped base part and three or more protruding parts protruding from the distal end side surface of the base part toward the distal end side and set apart from each other. The relationships 0.05?H?2.5T and 0.05?(S2/S1)?0.8 are satisfied, where T (thickness), H (length), S1 (area of base distal end surface) and S2 (total area of protruding distal end surfaces) are as defined herein.Type: ApplicationFiled: December 8, 2016Publication date: June 25, 2020Applicant: NGK SPARK PLUG CO., LTD.Inventors: Yusuke FUJI, Tatsunori YAMADA, Daiki GOTO, Junki IWABUCHI
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Patent number: 10578506Abstract: A pressure sensor includes: a diaphragm joined to a front side of a housing via a joint portion; a sensor portion; a connection portion connecting the diaphragm to the sensor portion; and a heat receiving portion disposed at the front side of the diaphragm. When: a minimum value of an area of a minimum inclusion region which is a virtual region, which include a cross-section of a portion from the heat receiving portion to the diaphragm and of which an overall length of a contour become minimum on a cross-section perpendicular to the axial line, is defined as a connection area Sn; and an area of a region surrounded by the joint portion on a projection plane perpendicular to the axial line when the diaphragm and the heat receiving portion are projected onto the projection plane is defined as a diaphragm effective area Sd, (Sn/Sd)?0.25 is satisfied.Type: GrantFiled: July 8, 2016Date of Patent: March 3, 2020Assignee: NGK SPARK PLUG CO., LTD.Inventors: Tatsunori Yamada, Shunsuke Tsuga, Yusuke Fuji, Junki Iwabuchi, Daiki Goto
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Patent number: 10183893Abstract: A compact is formed by introducing a slurry containing a ceramic powder or a metal powder, a binder and a solvent into a compaction die, and compacting the slurry in the compaction die. The compact embedded in the compaction die is immersed in an alternative CFC (liquid) (FIG. 4A). The solvent contained in the compact is gradually replaced with the alternative CFC. In the course of this process, the compact separates naturally from the compaction die (releasing is achieved) without receiving an external force. Subsequently, the compact is taken out of the alternative CFC (liquid). The alternative CFC has a boiling point as low as 95° C. at 1 atmospheric pressure. Accordingly, the alternative CFC contained in the compact will volatilize at high speed, thus being removed. Consequently, the compact can be dried in a relatively short time without being heated.Type: GrantFiled: September 22, 2015Date of Patent: January 22, 2019Assignee: NGK Insulators, Ltd.Inventors: Yusuke Fuji, Kunihiko Yoshioka
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Publication number: 20180202886Abstract: A pressure sensor includes: a diaphragm joined to a front side of a housing via a joint portion; a sensor portion; a connection portion connecting the diaphragm to the sensor portion; and a heat receiving portion disposed at the front side of the diaphragm. When: a minimum value of an area of a minimum inclusion region which is a virtual region, which include a cross-section of a portion from the heat receiving portion to the diaphragm and of which an overall length of a contour become minimum on a cross-section perpendicular to the axial line, is defined as a connection area Sn; and an area of a region surrounded by the joint portion on a projection plane perpendicular to the axial line when the diaphragm and the heat receiving portion are projected onto the projection plane is defined as a diaphragm effective area Sd, (Sn/Sd)?0.25 is satisfied.Type: ApplicationFiled: July 8, 2016Publication date: July 19, 2018Inventors: Tatsunori YAMADA, Shunsuke TSUGA, Yusuke FUJI, Junki IWABUCHI, Daiki GOTO
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Patent number: 9809014Abstract: A method for producing a resin joined body in which a specific region L1 of a welding portion of a second resin member (21) is provided to form a low-laser-light-transmissible portion, and the low-laser-light-transmissible portion has a laser light transmissibility lower than that of a region of the welding portion other than the specific region L1. Welding is carried out so that a portion between points S2 and F2, serving as a weld overlap portion (112), is present in the specific region L1 forming the low-laser-light-transmissible portion. Also disclosed is a resin joined body.Type: GrantFiled: September 27, 2012Date of Patent: November 7, 2017Assignee: NGK SPARK PLUG CO., LTD.Inventors: Wataru Kawagishi, Yusuke Fuji, Takashi Koda, Yoshihiko Kohmura
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Patent number: 9735552Abstract: A spark plug includes: an insulator having an axial hole; a conductive member disposed around the insulator; a center electrode disposed inside the axial hole, having a bar shape extending in the axial direction, and located on a rear end side with respect to a front end of the conductive member; a ground electrode forming a spark gap between the ground electrode and the center electrode; and a connection part including a plurality of spokes extending in a radial direction whose inner ends are connected to the ground electrode, and connecting the conductive member to the ground electrode. The connection part includes a joint part that is jointed to an inner surface of the conductive member, and the ground electrode has at least one of a notch and a groove at a position that is different from a position connected to the spokes in a circumferential direction.Type: GrantFiled: November 11, 2014Date of Patent: August 15, 2017Assignee: NGK SPARK PLUG CO., LTD.Inventors: Tatsunori Yamada, Yusuke Fuji, Tomoyuki Igarashi, Kei Takahashi
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Publication number: 20160046530Abstract: A compact is formed by introducing a slurry containing a ceramic powder or a metal powder, a binder and a solvent into a compaction die, and compacting the slurry in the compaction die. The compact embedded in the compaction die is immersed in an alternative CFC (liquid) (FIG. 4A). The solvent contained in the compact is gradually replaced with the alternative CFC. In the course of this process, the compact separates naturally from the compaction die (releasing is achieved) without receiving an external force. Subsequently, the compact is taken out of the alternative CFC (liquid). The alternative CFC has a boiling point as low as 95° C. at 1 atmospheric pressure. Accordingly, the alternative CFC contained in the compact will volatilize at high speed, thus being removed. Consequently, the compact can be dried in a relatively short time without being heated.Type: ApplicationFiled: September 22, 2015Publication date: February 18, 2016Inventors: Yusuke FUJI, Kunihiko YOSHIOKA
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Publication number: 20150162725Abstract: A spark plug includes: an insulator having an axial hole; a conductive member disposed around the insulator; a center electrode disposed inside the axial hole, having a bar shape extending in the axial direction, and located on a rear end side with respect to a front end of the conductive member; a ground electrode forming a spark gap between the ground electrode and the center electrode; and a connection part including a plurality of spokes extending in a radial direction whose inner ends are connected to the ground electrode, and connecting the conductive member to the ground electrode. The connection part includes a joint part that is jointed to an inner surface of the conductive member, and the ground electrode has at least one of a notch and a groove at a position that is different from a position connected to the spokes in a circumferential direction.Type: ApplicationFiled: November 11, 2014Publication date: June 11, 2015Applicant: NGK Spark Plug Co., LTD.Inventors: Tatsunori YAMADA, Yusuke FUJI, Tomoyuki IGARASHI, Kei TAKAHASHI
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Patent number: 9051405Abstract: A resin containing a structural unit derived from a compound represented by the formula (aa) wherein T, R1 and Z1 are defined, in the specification.Type: GrantFiled: June 22, 2010Date of Patent: June 9, 2015Assignee: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Koji Ichikawa, Yusuke Fuji, Satoshi Yamaguchi
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Publication number: 20150132698Abstract: A resin containing a structural unit derived from a compound represented by the formula (aa) wherein T, R1 and Z1 are defined in the specification.Type: ApplicationFiled: January 23, 2015Publication date: May 14, 2015Applicant: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Koji ICHIKAWA, Yusuke FUJI, Satoshi YAMAGUCHI
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Publication number: 20140255668Abstract: A method for producing a resin joined body in which a specific region L1 of a welding portion of a second resin member (21) is provided to form a low-laser-light-transmissible portion, and the low-laser-light-transmissible portion has a laser light transmissibility lower than that of a region of the welding portion other than the specific region L1. Welding is carried out so that a portion between points S2 and F2, serving as a weld overlap portion (112), is present in the specific region L1 forming the low-laser-light-transmissible portion. Also disclosed is a resin joined body.Type: ApplicationFiled: September 27, 2012Publication date: September 11, 2014Applicant: NGK SPARK PLUG CO., LTD.Inventors: Wataru Kawagishi, Yusuke Fuji, Takashi Koda, Yoshihiko Kohmura
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Patent number: 8357015Abstract: A case comprised of a metal-resin composite body having a connector including a terminal fitting, the connector being integrated with an opening of a wall of a case main body so that the connector sandwiches an edge of the wall. The connector is comprised of a base resin formed by injection molding so as to sandwich the wall. A separately-manufactured connector is welded to the base resin. Forming the base resin on the case main body provides a less complicated configuration of the case compared to a case where a connector is formed directly to the case main body.Type: GrantFiled: November 21, 2008Date of Patent: January 22, 2013Assignee: NGK Spark Plug Co., Ltd.Inventors: Yoshihiko Kohmura, Shingo Yoshida, Yusuke Fuji, Takaya Hirai, Wataru Kawagishi
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Patent number: 8062829Abstract: A chemically amplified resist composition, comprising: a resin which includes a structural unit having an acid-labile group in a side chain, a structural unit represented by the formula (I) and a structural unit having a polycyclic lactone structure, and which is soluble in an organic solvent and insoluble or poorly soluble in an alkali aqueous solution but rendered soluble in an alkali aqueous solution by the action of an acid; and an acid generator represented by the formula (II). wherein X1 represents a hydrogen atom, a C1 to C4 alkyl group, etc., Y in each occurrence independently represent a hydrogen atom or an alkyl group, and n is an integer of 1 to 14, R1 to R4 independently represent a hydrogen atom, an alkyl group, etc., and A+ represents an organic counterion, E? represents CF3SO3—, C2F5SO3—, C4F9SO3—, etc., Y1 and Y2 independently represent a fluorine atom or a C1 to C6 perfluoroalkyl group.Type: GrantFiled: March 2, 2009Date of Patent: November 22, 2011Assignee: Sumitomo Chemical Company, LimitedInventors: Mitsuhiro Hata, Yusuke Fuji, Takayuki Miyagawa
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Patent number: 8062830Abstract: The present invention provides a chemically amplified resist composition comprising: a resin (A) which contains no fluorine atom and a structural unit (a1) having an acid-labile group in a side chain, a resin (B) which contains a structural unit (b2) having a fluorine-containing group in a side chain and at least one structural unit selected from the group consisting of a structural unit (b1) having an acid-labile group, a structural unit (b3) having a hydroxyl group and a structural unit (b4) having a lactone structure in a side chain, and an acid generator, wherein the content of the structural unit (b1) based on the total units of the resin (B) is less than 10 mol %.Type: GrantFiled: April 17, 2009Date of Patent: November 22, 2011Assignee: Sumitomo Chemical Company, LimitedInventors: Yusuke Fuji, Junji Shigematsu, Takayuki Miyagawa, Nobuo Ando, Ichiki Takemoto
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Patent number: 8057983Abstract: The present invention provides a chemically amplified resist composition comprising: a resin (A) which contains no fluorine atom and a structural unit (a1) having an acid-labile group in a side chain, a resin (B) which contains a structural unit (b2) having a fluorine-containing group in a side chain and at least one structural unit selected from the group consisting of a structural unit (b1) having an acid-labile group, a structural unit (b3) having a hydroxyl group and a structural unit (b4) having a lactone structure in a side chain, and an acid generator, wherein the amount of the resin (B) is 2 parts by weight or less per 100 parts by weight of the resin (A).Type: GrantFiled: April 17, 2009Date of Patent: November 15, 2011Assignee: Sumitomo Chemical Company, LimitedInventors: Yusuke Fuji, Junji Shigematsu, Takayuki Miyagawa, Nobuo Ando, Ichiki Takemoto
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Patent number: 8048612Abstract: A polymer comprising a structural unit represented by the formula (Ia) or (Ib): wherein R1 represents a hydrogen atom etc., R2 represents a linear, branched chain or cyclic C1-C8 alkyl group, R3 represents a methyl group, n represents an integer of 0 to 14, Z1 represents a single bond etc., k represents an integer of 1 to 4, R4 and R5 each independently represents a hydrogen atom etc., and m represents an integer of 1 to 3, a structural unit represented by the formula (II): wherein R6 and R7 each independently represents a hydrogen atom etc., R8 represents a methyl group, R9 represents a hydrogen atom etc., n? represents an integer of 0 to 12, Z2 represents a single bond etc., k? represents an integer of 1 to 4, R21 and R22 each independently represents a hydrogen atom etc.Type: GrantFiled: May 18, 2009Date of Patent: November 1, 2011Assignee: Sumitomo Chemical Company, LimitedInventors: Yusuke Fuji, Mitsuhiro Hata
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Patent number: 7981985Abstract: The present invention provides a polymer containing a structural unit represented by the formula (Ia) or (Ib): wherein R1, R2, R3, n, Z1, R4, R5 and m are defined in the specification, a structural unit represented by the formula (II): wherein R6, R7, R8, R9, Z2, n? and Z? are defined in the specification, and a structural unit represented by the formula (III): wherein R10, R11, 1? and Z3 are defined in the specification.Type: GrantFiled: April 17, 2009Date of Patent: July 19, 2011Assignee: Sumitomo Chemical Company, LimitedInventors: Yusuke Fuji, Mitsuhiro Hata
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Publication number: 20100323296Abstract: A resin comprises a structural unit derived from a compound represented by the formula (aa) wherein T represents a C4 to C36 alicyclic hydrocarbon group, the hydrogen atom contained in the alicyclic hydrocarbon group may be replaced by a halogen atom, a hydroxyl group, a C1 to C12 alkyl group optionally substituted with a halogen atom or a hydroxyl group, a C1 to C12 alkoxyl group, a C6 to C12 aryl group, a C7 to C12 aralkyl group, a glycidyloxy group, a C2 to C4 acyl group, an alkoxycarbonyl group, an alkanoyloxyalkyl group or a cyano group, and the —CH2— contained in the alicyclic hydrocarbon group is replaced by at least one —SO2— and furthermore may be replaced by —CO—, —O—, —S—, —SO2— or —N(Rc)—; Rc represents a hydrogen atom or a C1 to C6 alkyl group; R1 represents a hydrogen atom, a halogen atom, or a C1 to C6 alkyl group that may optionally has halogen atoms; and Z1 represents an optionally substituted C1 to C17 saturated hydrocarbon group, and the —CH2— contained in the saturated hydrocarbon grouType: ApplicationFiled: June 22, 2010Publication date: December 23, 2010Applicant: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Koji Ichikawa, Yusuke Fuji, Satoshi Yamaguchi