Patents by Inventor Takeshi Fujii

Takeshi Fujii 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).

  • Patent number: 9466711
    Abstract: Between a source electrode (25) of a main device (24) and a current sensing electrode (22) of a current detection device (21), a resistor for detecting current is connected. Dielectric withstand voltage of gate insulator (36) is larger than a product of the resistor and maximal current flowing through the current detection device (21) with reverse bias. A diffusion length of a p-body region (32) of the main device (24) is shorter than that of a p-body (31) of the current detection device (21). A curvature radius at an end portion of the p-body region (32) of the main device (24) is smaller than that of the p-body (31) of the current detection device (21). As a result, at the inverse bias, electric field at the end portion of the p-body region (32) of the main device (24) becomes stronger than that of the p-body region (31) of the current detection device (21). Consequently, avalanche breakdown tends to occur earlier in the main device 24 than the current detection device (21).
    Type: Grant
    Filed: January 28, 2009
    Date of Patent: October 11, 2016
    Assignee: FUJI ELECTRIC CO., LTD.
    Inventors: Seiji Momota, Hitoshi Abe, Takashi Shiigi, Takeshi Fujii, Koh Yoshikawa, Tetsutaro Imagawa, Masaki Koyama, Makoto Asai
  • Publication number: 20160265404
    Abstract: To improve the oil separation performance in an oil separation device for an internal combustion engine. The oil separation device (10) comprises a gas liquid separation passage (56) internally defined by a lower wall, an upper wall and a pair of side walls, and extending in a horizontal direction, a gas inlet (54) and a gas outlet (63) provided on either end of the gas liquid separation passage, a plurality of lower partition walls (56H) projecting upward from the lower wall, and a plurality of upper partition walls (56J) projecting downward from the upper wall. The lower partition walls and the upper partition wall are tilted with respective the length wise direction in plan view so as to define a spiral passage. The lower wall is inclined with respect to a horizontal plane such that an upstream part of the lower wall is lower than a downstream part of the lower wall with respect to a direction of the swirl flow.
    Type: Application
    Filed: November 7, 2014
    Publication date: September 15, 2016
    Inventors: Takeshi Fujii, Kazunari Shigemoto, Mayuka Odo, Yuya Kasajima, Hirotaka Komatsu, Junya Saito, Kouji Nakano, Sei Maruyama, Yoshiki Matsushiro
  • Patent number: 9376984
    Abstract: A cooling structure for an internal combustion engine includes a spacer. The spacer is fitted inside a water jacket which is formed to surround peripheries of a plurality of cylinder bores arranged one after another on a cylinder row line of a cylinder block of the internal combustion engine. A cooling condition of the cylinder bores is controlled by regulating a flow of cooling water in the water jacket by use of the spacer. A fixing member for fixing the spacer inside the water jacket is provided on an inner wall surface of the spacer facing the cylinder bores.
    Type: Grant
    Filed: November 21, 2014
    Date of Patent: June 28, 2016
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Takeru Hamakawa, Atsushi Nakajima, Yoshihiro Akiyama, Yoshihisa Kazui, Takeshi Fujii, Kuniyasu Tamura, Yoshiyuki Iida
  • Publication number: 20160163656
    Abstract: A semiconductor device includes: a semiconductor substrate having an element; a front surface electrode connected to the element; a rear surface electrode connected to the element; a protective film disposed on the front surface of the semiconductor substrate in a separation region; and a temperature sensor disposed on a front surface side of the semiconductor substrate. The front surface electrode is divided into multiple pieces along at least two directions with the protective film. The separation region includes an opposing region located between opposing sides of divided pieces of the front surface electrode adjacent to each other, and an intersection region, at which the opposing region intersects. The temperature sensor is disposed in only the opposing region.
    Type: Application
    Filed: May 29, 2014
    Publication date: June 9, 2016
    Inventors: Shun SUGIURA, Yasushi OOKURA, Takeshi FUJII, Tetsutaro IMAGAWA
  • Patent number: 9333795
    Abstract: Provided are: an oil-based ink composition for a ball-point pen having a favorable feeling of writing, the favorable deepness of a written trace, favorable light resistance, favorable ink stability over time, and favorable pigment dispersibility; and an oil-based ball-point pen refill using the oil-based ink composition. An oil-based ink composition for a ball-point pen comprising at least a dye, a pigment, and an organic solvent, wherein the dye is at least one salt-forming dye selected from the group consisting of salt-forming dyes of alkylbenzene sulfonic acids and xanthene-based basic dyes, salt-forming dyes of alkylbenzene sulfonic acids and triarylmethane-based basic dyes, and salt-forming dyes of alkylbenzene sulfonic acids and azomethine-based basic dyes.
    Type: Grant
    Filed: March 1, 2013
    Date of Patent: May 10, 2016
    Assignee: KABUSHIKI KAISHA PILOT CORPORATION
    Inventor: Takeshi Fujii
  • Publication number: 20160116287
    Abstract: A driver apparatus includes a vibrator and a drive circuit configured to input a drive signal to the vibrator to vibrate the vibrator. The drive circuit includes an output amplifier configured to output the drive signal to the vibrator based on a monitor signal, a power supply unit configured to supply a power supply voltage, and a power supply voltage controller configured to control the power supply voltage and to supply the controlled power supply voltage to the output amplifies. This driver apparatus can increase amplitude of the vibration of the vibrator, and can increase detection sensitivity to a physical quantity detection apparatus including the driver apparatus.
    Type: Application
    Filed: June 30, 2014
    Publication date: April 28, 2016
    Inventors: TAKESHI FUJII, TAKESHI UEMURA, HIDEAKI FUJIURA, YASUNOBU TSUKIO, KENICHI YASAKA
  • Publication number: 20160005881
    Abstract: Stacked films includes mica, a self-assembled film and a graphene film. The self-assembled film is formed on the mica. The graphene film is formed over the self-assembled film. The molecules that make up the self-assembled film have hydrophobic main chains.
    Type: Application
    Filed: September 11, 2015
    Publication date: January 7, 2016
    Applicant: FUJI ELECTRIC CO., LTD.
    Inventors: Takeshi FUJII, Mariko SATO
  • Patent number: 9221991
    Abstract: An object of the present invention is to provide a copolymer having the characteristic of developing high viscosity, and lowering its viscosity with an increase in rate of shear, particularly a copolymer having the characteristic of developing viscosity, and lowering its viscosity with an increase in rate of shear even in an aqueous coating composition that contains a surfactant. The present invention provides a copolymer obtainable by copolymerization of a monomer component (m) that includes: (m-1), a macromonomer having (i) a backbone that comprises a polymer chain having a number average molecular weight of 1,000 to 10,000 obtainable by polymerizing a monomer component (I) that contains 5 to 100 mass % of a C4-C24 alkyl-containing polymerizable unsaturated monomer (a), and (ii) a polymerizable unsaturated group; and (m-2) a polymerizable unsaturated monomer containing a hydrophilic group.
    Type: Grant
    Filed: September 8, 2010
    Date of Patent: December 29, 2015
    Assignee: KANSAI PAINT CO., LTD.
    Inventor: Takeshi Fujii
  • Publication number: 20150275025
    Abstract: An object of the present invention is to provide a copolymer having the characteristic of developing high viscosity, and lowering its viscosity with an increase in rate of shear, particularly a copolymer having the characteristic of developing viscosity, and lowering its viscosity with an increase in rate of shear even in an aqueous coating composition that contains a surfactant. The present invention provides a copolymer obtainable by copolymerization of a monomer component (m) that includes: (m-1), a macromonomer having (i) a backbone that comprises a polymer chain having a number average molecular weight of 1,000 to 10,000 obtainable by polymerizing a monomer component (I) that contains 5 to 100 mass % of a C4-C24 alkyl-containing polymerizable unsaturated monomer (a), and (ii) a polymerizable unsaturated group; and (m-2) a polymerizable unsaturated monomer containing a hydrophilic group.
    Type: Application
    Filed: June 15, 2015
    Publication date: October 1, 2015
    Inventor: Takeshi FUJII
  • Patent number: 9139740
    Abstract: An object of the present invention is to provide a graft copolymer that is usable as various functional materials, that is stimulus responsive, and that is soluble in water at ordinary temperatures; and to provide an aqueous coating composition that comprises the graft copolymer as a thickener. The present invention also provides a rheology modifier for an aqueous coating composition comprising a graft copolymer consisting of (A) a main chain comprising an N-substituted (meth)acrylamide compound and having a lower critical solution temperature in water of 40° C. or higher, and (B) a hydrophobic side chain.
    Type: Grant
    Filed: March 3, 2010
    Date of Patent: September 22, 2015
    Assignee: KANSAI PAINT CO., LTD.
    Inventor: Takeshi Fujii
  • Publication number: 20150075454
    Abstract: A cooling structure for an internal combustion engine includes a spacer. The spacer is fitted inside a water jacket which is formed to surround peripheries of a plurality of cylinder bores arranged one after another on a cylinder row line of a cylinder block of the internal combustion engine. A cooling condition of the cylinder bores is controlled by regulating a flow of cooling water in the water jacket by use of the spacer. A fixing member for fixing the spacer inside the water jacket is provided on an inner wall surface of the spacer facing the cylinder bores.
    Type: Application
    Filed: November 21, 2014
    Publication date: March 19, 2015
    Applicant: HONDA MOTOR CO., LTD.
    Inventors: Takeru HAMAKAWA, Atsushi NAKAJIMA, Yoshihiro AKIYAMA, Yoshihisa KAZUI, Takeshi FUJII, Kuniyasu TAMURA, Yoshiyuki IIDA
  • Patent number: 8980458
    Abstract: A battery casing for receiving a battery for driving an electric vehicle, including: a tray member made from a resin and supporting the battery; a support member provided under a lower face of the tray member and supporting the tray member from a bottom thereof; a standing wall provided so as to stand in the tray member; and a sheet metal tray member made from a sheet metal and placed on the tray member. The sheet metal tray member includes a plurality of sheet metal recesses that receive the battery and a sheet metal flange placed on an upper face of the standing wall. The standing wall includes a through hole formed through the standing wall in a standing direction of the standing wall. The support member and the sheet metal flange are fastened to the tray member by a sheet metal fastening member provided through the through hole.
    Type: Grant
    Filed: November 9, 2011
    Date of Patent: March 17, 2015
    Assignees: Mitsubishi Jidosha Kogyo Kabushiki Kaisha, Mitsubishi Jidosha Engineering Kabushiki Kaisha
    Inventors: Hideki Honjo, Weng Leong Loo, Masanori Inagaki, Seiichi Takasaki, Takanori Yamamoto, Takeshi Fujii
  • Publication number: 20150021425
    Abstract: Provided are a filament winding method and a filament winding apparatus, in which, when a new bobbin is mounted on a bobbin rotation driving device, the control device is programmed to rotate the bobbin and oscillate a dancer while maintaining a state where a distal end of filament unwound through the dancer is fixed further beyond the dancer and the filament is stretched. The control device is programmed to obtain a bobbin diameter of the bobbin mounted on the bobbin rotation driving device based on a length of the dancer, an oscillation angle of the dancer, and a rotation angle of the bobbin.
    Type: Application
    Filed: July 16, 2014
    Publication date: January 22, 2015
    Applicants: JTEKT Corporation, TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yuji YAMAGUCHI, Hisaki Kojima, Tadashi Ohtani, Takeshi Fujii
  • Publication number: 20150023720
    Abstract: Provided are: an oil-based ink composition for a ball-point pen having a favorable feeling of writing, the favorable deepness of a written trace, favorable light resistance, favorable ink stability over time, and favorable pigment dispersibility; and an oil-based ball-point pen refill using the oil-based ink composition. An oil-based ink composition for a ball-point pen comprising at least a dye, a pigment, and an organic solvent, wherein the dye is at least one salt-forming dye selected from the group consisting of salt-forming dyes of alkylbenzene sulfonic acids and xanthene-based basic dyes, salt-forming dyes of alkylbenzene sulfonic acids and triarylmethane-based basic dyes, and salt-forming dyes of alkylbenzene sulfonic acids and azomethine-based basic dyes.
    Type: Application
    Filed: March 1, 2013
    Publication date: January 22, 2015
    Applicant: Kabushiki Kaisha Pilot Corporation
    Inventor: Takeshi Fujii
  • Patent number: 8919302
    Abstract: A spacer arranged inside a water jacket which is formed to surround peripheries of cylinder bores in a cylinder block of an internal combustion engine includes support legs extending in an up-and-down direction from a spacer main body part which partitions the water jacket into an upper and lower cooling water passages. The support legs are disposed in opposite end portions in a cylinder row line direction, where the temperatures of the cylinder bores tend to be lower. Accordingly, even if the flow of cooling water is more or less inhibited by the support legs and the cooling effect deteriorates, it is possible to prevent the temperatures of the respective cylinder bores from becoming different by suppressing the influence to a minimum.
    Type: Grant
    Filed: November 5, 2010
    Date of Patent: December 30, 2014
    Assignee: Honda Motor Co., Ltd.
    Inventors: Takeru Hamakawa, Atsushi Nakajima, Yoshihiro Akiyama, Yoshihisa Kazui, Takeshi Fujii, Kuniyasu Tamura, Yoshiyuki Iida
  • Patent number: 8851149
    Abstract: To provide a sheet shutter which, when a shutter electrical unit is provided in a support post, prevents the shutter electrical unit from greatly projecting from the support post. The sheet shutter according to the present invention, which includes a sheet case, a support post arranged at each of the left and right end portions of the sheet case, a sheet guide section that is provided at each of left and right inner portions of the support posts to guide the lifting and lowering of the sheet, and a shutter electrical unit is featured in that a storage space which detachably accommodates and supports the shutter electrical unit along the direction of the support post is formed on the left and right outer side of the sheet guide section in the support post.
    Type: Grant
    Filed: October 17, 2011
    Date of Patent: October 7, 2014
    Assignee: Komatsu Electric Industry Co., Ltd.
    Inventors: Akio Komatsu, Hitoyuki Adachi, Yoshiaki Horie, Takeshi Fujii
  • Patent number: 8773142
    Abstract: An electronic component includes an oscillator element, a driving circuit outputting a driving signal to the oscillator element, a clock frequency generator outputting a clock signal to the driving circuit, a clock frequency controller controlling a frequency of the clock signal, a consumption-current detection unit detecting a consumption current of the driving circuit, and a fault detection unit electrically connected to the consumption-current detection unit and the clock frequency controller. When the clock frequency controller changes the frequency of the clock signal, the detected consumption current changes, and allows the consumption-current detection unit to detect the change of the consumption current. The fault detection unit detects a fault based on the change of the frequency of the clock signal and the change of the consumption current. This electronic component can have a fault detection function and a small size.
    Type: Grant
    Filed: June 23, 2010
    Date of Patent: July 8, 2014
    Assignee: Panasonic Corporation
    Inventors: Takeshi Fujii, Keisuke Kuroda
  • Patent number: 8771796
    Abstract: An object of the present invention is to provide a method for forming a coating film that is capable of forming a coating film having excellent smoothness, distinctness of image and luster using an aqueous coating composition. The present invention provides a method for forming a coating film comprising: Step (1): forming an uncured coating film by applying to a substrate an aqueous coating composition that contains a copolymer of monomer components comprising one or more N-substituted (meth)acrylamide compounds, the copolymer being a graft copolymer comprising (A) a main chain having a lower critical solution temperature T1 in water within the range of 30 to 95° C., and (B) at least one hydrophobic side chain; Step (2): preheating the uncured coating film formed in Step (1) under heating conditions such that a preheating temperature T2 falls within the range of 60 to 100° C.
    Type: Grant
    Filed: August 9, 2011
    Date of Patent: July 8, 2014
    Assignee: Kansai Paint Co., Ltd.
    Inventor: Takeshi Fujii
  • Publication number: 20140162021
    Abstract: A method for producing grapheme is disclosed in which graphene is formed by supplying carbon to a heated transition metal surface, in order to form a high-quality uniform graphene film having no domain boundaries. The method includes forming a buffer thin film that is epitaxially grown on a Ni(111) substrate, and forming graphene on the buffer thin film. The buffer thin film is made of material selected from the group consisting of Fe, Co, Ni, Cu, Mo, Ru, Rh, Pd, W, Re, Ir and Pt, or from alloys thereof. The buffer thin film has a surface of three-fold symmetry or six-fold symmetry.
    Type: Application
    Filed: February 12, 2014
    Publication date: June 12, 2014
    Applicant: FUJI ELECTRIC CO., LTD.
    Inventors: Takeshi FUJII, Mariko SATO
  • Patent number: 8710393
    Abstract: By respectively abutting first and second outer diameter sections of a second metallic member against first and second inner diameter sections of a first metallic member, and energizing the first metallic member and the second metallic member using a pair of electrodes while pressurizing both metallic members in an axial direction thereof, a first junction where the first inner diameter section and the first outer diameter section are bonded and a second junction where the second inner diameter section and the second outer diameter section are bonded are formed between both metallic members, and a gap in which the metals do not come into contact with each other is formed between both junctions over a predetermined axial length. Accordingly, a high joint strength can be secured using less energy for bonding.
    Type: Grant
    Filed: October 28, 2010
    Date of Patent: April 29, 2014
    Assignees: Mazda Motor Corporation, Origin Electric Company, Limited
    Inventors: Shinya Okumura, Akira Hashimoto, Kazuyuki Shiino, Takeshi Fujii, Akinobu Yamagata, Hiroaki Hayashi, Tomoo Sawazaki, Kazuyuki Ishida, Masatoshi Hamano, Hiroji Sasaki