Patents by Inventor Masafumi Tanaka

Masafumi Tanaka 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: 10162252
    Abstract: The phosphor disc disclosed here includes the following structural elements: a disc-shaped metal plate; a phosphor layer disposed circumferentially on the metal plate; and a bonding layer for bonding the phosphor layer to the metal plate. The metal plate curves convexly toward the phosphor layer.
    Type: Grant
    Filed: July 11, 2017
    Date of Patent: December 25, 2018
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Takashi Ikeda, Masafumi Tanaka
  • Publication number: 20180095350
    Abstract: A phosphor wheel module includes a substrate and a phosphor region disposed on a surface of the substrate. The phosphor region includes a phosphor that is disposed on at least a part of a circumference of a circle with a first radius from a rotation center of the substrate. The substrate includes a ventilation region and a heat conduction region. The ventilation region includes a plurality of openings that is located closer to the rotation center of the substrate than the phosphor region. The heat conduction region is located farther away from the rotation center of the substrate than the phosphor region.
    Type: Application
    Filed: September 28, 2017
    Publication date: April 5, 2018
    Inventors: Masafumi TANAKA, Shigekazu YAMAGISHI, Takashi IKEDA
  • Publication number: 20180031958
    Abstract: The phosphor disc disclosed here includes the following structural elements: a disc-shaped metal plate; a phosphor layer disposed circumferentially on the metal plate; and a bonding layer for bonding the phosphor layer to the metal plate. The metal plate curves convexly toward the phosphor layer.
    Type: Application
    Filed: July 11, 2017
    Publication date: February 1, 2018
    Inventors: TAKASHI IKEDA, MASAFUMI TANAKA
  • Patent number: 9863604
    Abstract: A phosphor wheel includes: a substrate; a light reflection layer disposed on one surface of the substrate; a phosphor layer; and a bonding layer which is located between and bonds the light reflection layer and the phosphor layer, wherein the bonding layer contains a particle which is higher in thermal conductivity than a base material of the bonding layer and higher in light reflectance than the light reflection layer.
    Type: Grant
    Filed: October 20, 2016
    Date of Patent: January 9, 2018
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Takashi Ikeda, Masafumi Tanaka, Shigekazu Yamagishi, Hiroki Sugiyama
  • Publication number: 20170327719
    Abstract: The present invention aims to provide an adhesive composition which enables achievement of highly strong adhesion between a lightweight composite resin and a lightweight metal member, and which can maintain excellent adhesive strength even in cases where the ambient temperature largely changes or the adhesive composition is in contact with water or a snow-melting agent, and an adhesive sheet using it. The above object can be achieved with an adhesive composition containing at least an epoxy resin, an acrylic particle, and a curing agent, wherein the acrylic particle is a core-shell structure containing a butadiene-based rubber, and polymethacrylate or polyacrylate. The adhesive sheet is constituted such that an adhesive layer formed with the adhesive composition is present between a first release film and a second release film.
    Type: Application
    Filed: November 27, 2015
    Publication date: November 16, 2017
    Applicants: DAI NIPPON PRINTING CO., LTD., HONDA MOTOR CO., LTD.
    Inventors: Kentaro HOSHI, Kazuki TSUKIYAMA, Masafumi TANAKA, Masaaki NISHI
  • Publication number: 20170269461
    Abstract: A phosphor wheel includes a disc-shaped substrate and a phosphor ring fixedly bonded to the substrate. At least three cut-out sections or openings are formed on a rim of the substrate. The shortest length from the center of the substrate to inner edges of the cut-out sections or inner edges of the openings is generally equal to a radius of an outer circumference of the phosphor ring.
    Type: Application
    Filed: March 6, 2017
    Publication date: September 21, 2017
    Inventors: Takashi IKEDA, Masafumi TANAKA, Shigekazu YAMAGISHI
  • Publication number: 20170227192
    Abstract: A phosphor wheel includes: a substrate; a light reflection layer disposed on one surface of the substrate; a phosphor layer; and a bonding layer which is located between and bonds the light reflection layer and the phosphor layer, wherein the bonding layer contains a particle which is higher in thermal conductivity than a base material of the bonding layer and higher in light reflectance than the light reflection layer.
    Type: Application
    Filed: October 20, 2016
    Publication date: August 10, 2017
    Inventors: Takashi IKEDA, Masafumi TANAKA, Shigekazu YAMAGISHI, Hiroki SUGIYAMA
  • Patent number: 9678248
    Abstract: In order to improve the scratch resistance of an antireflective article having a moth-eye structure, an antireflective article is provided that has fine protrusions densely arranged therein, and has the interval between adjacent fine protrusions being no more than the shortest wavelength in the wavelength band for antireflection. At least some of the fine protrusions are fine protrusions having a plurality of apexes.
    Type: Grant
    Filed: July 31, 2013
    Date of Patent: June 13, 2017
    Assignee: DAI NIPPON PRINTING CO., LTD.
    Inventors: Yoshihiro Fukui, Hironori Kamiyama, Yuichi Miyazaki, Takafumi Shibata, Masafumi Tanaka, Kazuo Matsufuji, Nobu Masubuchi, Yuri Shimozaki, Youichirou Oohashi
  • Publication number: 20170133048
    Abstract: A plasma CVD device includes a chamber (102), an anode (104), a cathode (103), a holding portion which holds a substrate to be deposited (101) a plasma wall (88) an anti-adhesion member (91) which is arranged between a first gap (81) between the anode and the plasma wall and a first inner surface (102a) of the chamber and a pedestal (92) which is arranged between the anti-adhesion member and a back surface of the anode and which is electrically connected to the anode. The maximum diameter of each of the first gap, a second gap (82) between the anode and the anti-adhesion member, a third gap (83) between the back surface of the anode and the pedestal, a fourth gap (84) between the plasma wall and the anti-adhesion member and a fifth gap (85) between the anti-adhesion member and the pedestal is equal to or less than 4 mm.
    Type: Application
    Filed: June 20, 2014
    Publication date: May 11, 2017
    Inventors: Kouji ABE, Toshiyuki WATANABE, Masafumi TANAKA, Kohei OKUDAIRA, Hiroyasu SEKINO, Yuuji HONDA
  • Patent number: 9442222
    Abstract: In order to improve the scratch resistance of an antireflective article having a moth-eye structure, an antireflective article is provided that has fine protrusions densely arranged therein, has the interval between adjacent fine protrusions being no more than the shortest wavelength for an electromagnetic wavelength band for antireflection, and wherein: the fine protrusions are arranged in a non-lattice shape in the planar view; and mesh division lines formed upon the valley sections between each adjacent fine protrusions and surrounding each fine protrusion match Voronoi tessellation having the center of gravity of the fine protrusions, in the planar view as the generating point therefor, in at least one area of the antireflective article.
    Type: Grant
    Filed: July 31, 2013
    Date of Patent: September 13, 2016
    Assignee: DAI NIPPON PRINTING CO., LTD.
    Inventors: Yoshihiro Fukui, Hironori Kamiyama, Yuichi Miyazaki, Takafumi Shibata, Masafumi Tanaka, Kazuo Matsufuji, Yuri Shimozaki
  • Patent number: 9391595
    Abstract: A clock signal generation circuit includes a CR oscillator circuit having a capacitor, a resistor, and an amplifier circuit, and a voltage generation circuit adapted to generate a power supply voltage, and then supply the CR oscillator circuit 170 with the power supply voltage VDOS. An oscillation frequency of the CR oscillator circuit in a case in which a power supply voltage VDDL is a fixed voltage has a positive temperature characteristic. The voltage generation circuit generates the power supply voltage VDOS having a negative temperature characteristic based on a work function difference between transistors, and then supplies the power supply voltage VDOS as a power of the amplifier circuit of the CR oscillator circuit.
    Type: Grant
    Filed: November 25, 2014
    Date of Patent: July 12, 2016
    Assignee: Seiko Epson Corporation
    Inventors: Teppei Higuchi, Masafumi Tanaka, Katsuhiko Maki
  • Publication number: 20150168610
    Abstract: In order to improve the scratch resistance of an antireflective article having a moth-eye structure, an antireflective article is provided that has fine protrusions densely arranged therein, and has the interval between adjacent fine protrusions being no more than the shortest wavelength in the wavelength band for antireflection. At least some of the fine protrusions are fine protrusions having a plurality of apexes.
    Type: Application
    Filed: July 31, 2013
    Publication date: June 18, 2015
    Inventors: Yoshihiro Fukui, Hironori Kamiyama, Yuichi Miyazaki, Takafumi Shibata, Masafumi Tanaka, Kazuo Matsufuji, Nobu Masubuchi, Yuri Shimozaki, Youichirou Oohashi
  • Publication number: 20150168609
    Abstract: In order to improve the scratch resistance of an antireflective article having a moth-eye structure, an antireflective article is provided that has fine protrusions densely arranged therein, has the interval between adjacent fine protrusions being no more than the shortest wavelength for an electromagnetic wavelength band for antireflection, and wherein: the fine protrusions are arranged in a non-lattice shape in the planar view; and mesh division lines formed upon the valley sections between each adjacent fine protrusions and surrounding each fine protrusion match Voronoi tessellation having the center of gravity of the fine protrusions, in the planar view as the generating point therefor, in at least one area of the antireflective article.
    Type: Application
    Filed: July 31, 2013
    Publication date: June 18, 2015
    Inventors: Yoshihiro Fukui, Hironori Kamiyama, Yuichi Miyazaki, Takafumi Shibata, Masafumi Tanaka, Kazuo Matsufuji, Yuri Shimozaki
  • Patent number: 9047043
    Abstract: Disclosed herein is an electronic apparatus, including: a base chassis formed as a unitary member from a transparent material and having two faces positioned on the opposite sides to each other and individually formed as a first mounting face section and a second mounting face section; a display unit having a display panel thereon and attached to said first mounting face section of said base chassis; a control circuit board attached to said second mounting face section of said base chassis; and a rear cover attached to said second mounting face section of said base chassis and configured to cover said control circuit board.
    Type: Grant
    Filed: January 20, 2012
    Date of Patent: June 2, 2015
    Assignee: SONY CORPORATION
    Inventors: Shuhei Yukawa, Masafumi Tanaka, Yutaka Ogasawara, Tooru Kuronuma
  • Publication number: 20150145609
    Abstract: A clock signal generation circuit includes a CR oscillator circuit having a capacitor, a resistor, and an amplifier circuit, and a voltage generation circuit adapted to generate a power supply voltage, and then supply the CR oscillator circuit 170 with the power supply voltage VDOS. An oscillation frequency of the CR oscillator circuit in a case in which a power supply voltage VDDL is a fixed voltage has a positive temperature characteristic. The voltage generation circuit generates the power supply voltage VDOS having a negative temperature characteristic based on a work function difference between transistors, and then supplies the power supply voltage VDOS as a power of the amplifier circuit of the CR oscillator circuit.
    Type: Application
    Filed: November 25, 2014
    Publication date: May 28, 2015
    Inventors: Teppei HIGUCHI, Masafumi TANAKA, Katsuhiko MAKI
  • Publication number: 20120133907
    Abstract: A projection display apparatus comprising: a housing member that accommodates an illumination optical unit; a projection optical unit; and a cooling unit, wherein the housing member includes a layout space in a virtually columnar shape having a bottom that is a circumscribed circle of the projection optical unit in a cross sectional view vertical to the projection optical unit; the layout space includes a first layout space in a substantially conical shape and a second layout space excluding the first layout space; the projection optical unit is provided in the first layout space; and at least a part of the illumination optical unit and the cooling unit is provided in the second layout space; and the illumination optical unit and the cooling unit are disposed in a symmetrical positional relationship with respect to the projection optical unit.
    Type: Application
    Filed: November 30, 2011
    Publication date: May 31, 2012
    Applicant: SANYO ELECTRIC CO., LTD.
    Inventors: Sosuke Otani, Makoto Maeda, Shinya Matsumoto, Yusuke Ito, Masafumi Tanaka
  • Publication number: 20120133894
    Abstract: A projection display apparatus is placed on an installation surface forming a horizontal plane and projects an image onto a projection plane provided on a horizontal plane. The projection display apparatus includes: an imager that modulates the light emitted from a light source; an projection unit that projects the light emitted from the imager onto the projection plane; and an acoustic device that outputs a sound in the vertical direction.
    Type: Application
    Filed: November 30, 2011
    Publication date: May 31, 2012
    Applicant: SANYO ELECTRIC CO., LTD.
    Inventors: Masafumi Tanaka, Shinya Matsumoto, Ryoko Kubo, Makoto Maeda
  • Publication number: 20120120580
    Abstract: Disclosed herein is an electronic apparatus, including: a base chassis formed as a unitary member from a transparent material and having two faces positioned on the opposite sides to each other and individually formed as a first mounting face section and a second mounting face section; a display unit having a display panel thereon and attached to said first mounting face section of said base chassis; a control circuit board attached to said second mounting face section of said base chassis; and a rear cover attached to said second mounting face section of said base chassis and configured to cover said control circuit board.
    Type: Application
    Filed: January 20, 2012
    Publication date: May 17, 2012
    Applicant: Sony Corporation
    Inventors: Shuhei YUKAWA, Masafumi TANAKA, Yutaka OGASAWARA, Tooru KURONUMA
  • Publication number: 20120077172
    Abstract: A digital camera (1) performs shooting such that each student within a classroom is included in a subject, uses an optical flow to detect the action of standing up from a chair or the action of moving a mouth by a student who needs to be a speaker, thus specifies the position of the speaker (any of the students) on a shooting image and extracts image data on the face portion of the speaker. A PC (2) uses a projector (3) to display a material on a screen (4), and superimposes and displays, when the extracted image data is transferred from the digital camera (1), a picture of the face of the speaker on the screen (4) based on the extracted image data.
    Type: Application
    Filed: December 2, 2011
    Publication date: March 29, 2012
    Applicant: SANYO ELECTRIC CO., LTD.
    Inventors: Tohru WATANABE, Ryuhei AMANO, Noboru YOSHINOBE, Masafumi TANAKA, Kiyoko TSUJI, Kazuo ISHIMOTO, Toshio NAKAKUKI, Kaihei KUWATA, Masahiro YOSHIDA
  • Patent number: 8125771
    Abstract: Disclosed herein is an electronic apparatus, including: a base chassis formed as a unitary member from a transparent material and having two faces positioned on the opposite sides to each other and individually formed as a first mounting face section and a second mounting face section; a display unit having a display panel thereon and attached to said first mounting face section of said base chassis; a control circuit board attached to said second mounting face section of said base chassis; and a rear cover attached to said second mounting face section of said base chassis and configured to cover said control circuit board.
    Type: Grant
    Filed: March 19, 2007
    Date of Patent: February 28, 2012
    Assignee: Sony Corporation
    Inventors: Shuhei Yukawa, Masafumi Tanaka, Yutaka Ogasawara, Tooru Kuronuma