Patents by Inventor Jun Sakaguchi

Jun Sakaguchi 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: 10293748
    Abstract: A system for presenting information to an occupant of a vehicle mounted with an autonomous driving system, includes: a display unit configured to display the information; a display control unit configured to cause the display unit to display information in any one of display modes among a setting status display mode in which setting information is displayed, an operation status display mode in which travel information is displayed, and a recognition status display mode in which recognition result information of the autonomous driving system is displayed; and an acquisition unit configured to acquire an occupant's display mode switching instruction for switching the display mode, wherein the display control unit configured to switch the display mode of the display unit when the acquisition unit acquires the occupant's display mode switching instruction.
    Type: Grant
    Filed: May 25, 2018
    Date of Patent: May 21, 2019
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hiroki Mori, Ryuji Funayama, Jun Sato, Ayako Shimizu, Yuichi Kumai, Yuma Kawamori, Takeshi Matsumura, Tsukasa Shimizu, Yasuo Sakaguchi
  • Patent number: 9449806
    Abstract: Disclosed is a high-pressure discharge lamp (100) that reduces the occurrence of cracks even under high mercury vapor pressure. The high-pressure discharge lamp (100) is provided with a glass arc tube (102) including a light-emitting part (103) and a sealing part (104) connected to the light-emitting part (103), the light-emitting part (103) enclosing a discharge space, and a pair of electrodes (101), one end of each of the electrodes (101) facing one end of the other electrode (101) in the discharge space, and another end of each electrode (101) being embedded in the sealing part (104) and connected to a metal foil (105), at least one embedded section of the pair of electrodes (101) including at least one projection (101c).
    Type: Grant
    Filed: June 4, 2010
    Date of Patent: September 20, 2016
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Yoshiki Kitahara, Katsuhiro Ono, Jun Sakaguchi, Mitsuko Shuto, Yutaka Nishida
  • Patent number: 9041287
    Abstract: A high-pressure discharge lamp having an arc tube with a casing made of glass. The arc tube includes a light-emitting part and sealing parts connected to the light-emitting part. A pair of electrode rods are disposed within the glass casing such that their tips face each other with a gap therebetween and project into the discharge space, and their base ends are embedded in the sealing parts and overlap surfaces of metal foils provided in the sealing parts. Each base end is coated with a coating foil made of metal and having a C-like cross section with a slit formed between edges thereof. An end of the coating foil farthest from the light-emitting part is located closer to the light-emitting part than an end of the metal foil closest to the light-emitting part.
    Type: Grant
    Filed: June 4, 2013
    Date of Patent: May 26, 2015
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Jun Sakaguchi, Yoshiki Kitahara, Hiroki Ogawa
  • Patent number: 8979275
    Abstract: The projector uses two lamps, which are high-pressure discharge lamps with the same rated power, as light sources. The projector includes: a first alternating-current generator configured to generate a lamp current to be supplied to one of the lamps, based on an input control signal; a second alternating-current generator configured to generate a lamp current to be supplied to the other lamp, based on an input control signal; and a controller configured to control the lamp currents to have a same period and to be out of phase, by inputting a control signal to each of the first and the second alternating-current generators.
    Type: Grant
    Filed: June 28, 2011
    Date of Patent: March 17, 2015
    Assignee: Panasonic Corporation
    Inventors: Jun Sakaguchi, Syunsuke Ono
  • Patent number: 8952611
    Abstract: The present invention aims to prevent breakage of a sealing part and an electrode of a high pressure discharge lamp, and provides an electrode 100 used for a discharge lamp and having a rod-shaped part 101, one end of the rod-shaped part 101 to be sealed by a sealing part of an arc tube of the discharge lamp, the other end of the rod-shaped part 101 to be in a discharge space in the arc tube, wherein the rod-shaped part 101 has a rough surface that is composed of a plurality of types of crystal grains each having a different surface condition due to differences in crystal orientation.
    Type: Grant
    Filed: March 4, 2011
    Date of Patent: February 10, 2015
    Assignee: Panasonic Corporation
    Inventors: Jun Sakaguchi, Yoshiki Kitahara, Katsuhiro Ono, Kazunori Ohta
  • Patent number: 8777417
    Abstract: A high-pressure discharge lamp comprising an arc tube, the arc tube including: a light-emitting part which is substantially ellipsoidal; and sealing parts which extend from either end of the light-emitting part and in which bases of electrodes are sealed, the arc tube enclosing 0.2 mg/mm3 to 0.4 mg/mm3 of mercury, the high-pressure discharge lamp having a power rating greater than 355 W and not greater than 600 W, wherein 5.4?D?5.8 and 3.1?X?D?2.3 when 355<P?380, 5.8?D?6.2 and 3.1?X?D?2.7 when 380<P?450, and 6.2?D?6.6 and 3.1?X?D?3.3 when 450<P?600, where P denotes the power rating in watts of the high-pressure discharge lamp, D denotes an inside diameter in millimeters of the light-emitting part 104 with reference to a midpoint between the electrodes 101, and X denotes a wall thickness in millimeters of the light-emitting part 104 with reference to the midpoint between the electrodes 101.
    Type: Grant
    Filed: December 2, 2011
    Date of Patent: July 15, 2014
    Assignee: Panasonic Corporation
    Inventors: Hiroki Ogawa, Jun Sakaguchi
  • Publication number: 20140117836
    Abstract: A high-pressure discharge lamp having an electrode including an electrode rod, a melted part and a coil part, and satisfying 0 < La L < 0.3 , where La denotes an average value of a length in units of mm of an exposed portion of the coil part in an axial direction of the electrode rod, the exposed portion being not covered with the melted part, and L denotes a maximum value of a length in units of mm between a tip of a head of the electrode rod and an opposite edge of the coil part to the melted part, measured in the axial direction.
    Type: Application
    Filed: March 22, 2013
    Publication date: May 1, 2014
    Applicant: PANASONIC CORPORATION
    Inventors: Hiroki OGAWA, Yoshiki KITAHARA, Kazunori OHTA, Tamotsu ISHIKAWA, Jun SAKAGUCHI
  • Patent number: 8704436
    Abstract: A high-pressure discharge lamp having an electrode including an electrode rod, a melted part and a coil part, and satisfying 0 < La L < 0.3 , where La denotes an average value of a length in units of mm of an exposed portion of the coil part in an axial direction of the electrode rod, the exposed portion being not covered with the melted part, and L denotes a maximum value of a length in units of mm between a tip of a head of the electrode rod and an opposite edge of the coil part to the melted part, measured in the axial direction.
    Type: Grant
    Filed: March 22, 2013
    Date of Patent: April 22, 2014
    Assignee: Panasonic Corporation
    Inventors: Hiroki Ogawa, Yoshiki Kitahara, Kazunori Ohta, Tamotsu Ishikawa, Jun Sakaguchi
  • Publication number: 20130335715
    Abstract: A high-pressure discharge lamp having an arc tube with a casing made of glass. The arc tube includes a light-emitting part and sealing parts connected to the light-emitting part. A pair of electrode rods are disposed within the glass casing such that their tips face each other with a gap therebetween and project into the discharge space, and their base ends are embedded in the sealing parts and overlap surfaces of metal foils provided in the sealing parts. Each base end is coated with a coating foil made of metal and having a C-like cross section with a slit formed between edges thereof. An end of the coating foil farthest from the light-emitting part is located closer to the light-emitting part than an end of the metal foil closest to the light-emitting part.
    Type: Application
    Filed: June 4, 2013
    Publication date: December 19, 2013
    Inventors: Jun SAKAGUCHI, Yoshiki KITAHARA, Hiroki OGAWA
  • Publication number: 20120287409
    Abstract: A high-pressure discharge lamp comprising an arc tube, the arc tube including: a light-emitting part which is substantially ellipsoidal; and sealing parts which extend from either end of the light-emitting part and in which bases of electrodes are sealed, the arc tube enclosing 0.2 mg/mm3 to 0.4 mg/mm3 of mercury, the high-pressure discharge lamp having a power rating greater than 355 W and not greater than 600 W, wherein 5.4?D?5.8 and 3.1?x?D?2.3 when 355?P?380, 5.8?D?6.2 and 3.1?x?D?2.7 when 380?P?450, and 6.2?D?6.6 and 3.1?x?D?3.3 when 450?P?600, where P denotes the power rating in watts of the high-pressure discharge lamp, D denotes an inside diameter in millimeters of the light-emitting part 104 with reference to a midpoint between the electrodes 101, and X denotes a wall thickness in millimeters of the light-emitting part 104 with reference to the midpoint between the electrodes 101.
    Type: Application
    Filed: December 2, 2011
    Publication date: November 15, 2012
    Applicant: PANASONIC CORPORATION
    Inventors: Hiroki Ogawa, Jun Sakaguchi
  • Patent number: 8207673
    Abstract: A short arc high-pressure discharge lamp has an arc tube 1 made of quartz glass including a light-emitting portion 2 that fills mercury inside thereof and has a pair of electrodes arranged so as to face each other, and a sealing portion 3 connected to the light-emitting portion. The pair of electrodes have an electrode bar 5a, one end of the electrode bar is located in an internal space of the light-emitting portion, and the other end of the electrode bar is embedded in the sealing portion and bonded to a conductive metal-foil 7 sealed in the sealing portion. In at least a part of a portion of the electrode bar embedded in the sealing portion, the entire outer peripheral surface thereof is covered tightly with a metal-foil sleeve 7a.
    Type: Grant
    Filed: July 14, 2008
    Date of Patent: June 26, 2012
    Assignee: Panasonic Corporation
    Inventors: Jun Sakaguchi, Yoshiki Kitahara, Katsuhiro Ono
  • Patent number: 8203267
    Abstract: The present invention is directed to a method for manufacturing a high-pressure discharge lamp including: a spherical portion forming a light-emitting portion (1a); sealing portions that are connected with both ends of the spherical portion; an electrode (2a) that is sealed to each of the sealing portions; and a metal foil (3a) that is connected with a rear end of each electrode. A vessel provided with a cylindrical glass tube (8) on both ends of the spherical portion is used, a connection structure of the metal foil and the electrode are disposed in the glass tube such that a front end of the electrode is positioned in the spherical portion, and the glass tube is melted by heat and shrunk for sealing the metal foil and the electrode so as to form the sealing portion. An inner diameter ? of the glass tube before the heat-melt processing and a distance L from an edge of the metal foil to the internal space of the spherical portion are set to satisfy a relationship of L/??1.
    Type: Grant
    Filed: June 8, 2007
    Date of Patent: June 19, 2012
    Assignee: Panasonic Corporation
    Inventors: Yoshiki Kitahara, Katsuhiro Ono, Jun Sakaguchi, Ryo Minamihata
  • Publication number: 20120069307
    Abstract: Disclosed is a high-pressure discharge lamp (100) that reduces the occurrence of cracks even under high mercury vapor pressure. The high-pressure discharge lamp (100) is provided with a glass arc tube (102) including a light-emitting part (103) and a sealing part (104) connected to the light-emitting part (103), the light-emitting part (103) enclosing a discharge space, and a pair of electrodes (101), one end of each of the electrodes (101) facing one end of the other electrode (101) in the discharge space, and another end of each electrode (101) being embedded in the sealing part (104) and connected to a metal foil (105), at least one embedded section of the pair of electrodes (101) including at least one projection (101c).
    Type: Application
    Filed: June 4, 2010
    Publication date: March 22, 2012
    Inventors: Yoshiki Kitahara, Katsuhiro Ono, Jun Sakaguchi, Mitsuko Shuto, Yutaka Nishida
  • Publication number: 20120033190
    Abstract: The present invention aims to prevent breakage of a sealing part and an electrode of a high pressure discharge lamp, and provides an electrode 100 used for a discharge lamp and having a rod-shaped part 101, one end of the rod-shaped part 101 to be sealed by a sealing part of an arc tube of the discharge lamp, the other end of the rod-shaped part 101 to be in a discharge space in the arc tube, wherein the rod-shaped part 101 has a rough surface that is composed of a plurality of types of crystal grains each having a different surface condition due to differences in crystal orientation.
    Type: Application
    Filed: March 4, 2011
    Publication date: February 9, 2012
    Inventors: Jun Sakaguchi, Yoshiki Kitahara, Katsuhiro Ono, Kazunori Ohta
  • Publication number: 20120026471
    Abstract: The projector uses two lamps, which are high-pressure discharge lamps with the same rated power, as light sources. The projector includes: a first alternating-current generator configured to generate a lamp current to be supplied to one of the lamps, based on an input control signal; a second alternating-current generator configured to generate a lamp current to be supplied to the other lamp, based on an input control signal; and a controller configured to control the lamp currents to have a same period and to be out of phase, by inputting a control signal to each of the first and the second alternating-current generators.
    Type: Application
    Filed: June 28, 2011
    Publication date: February 2, 2012
    Inventors: Jun Sakaguchi, Syunsuke Ono
  • Patent number: 8106585
    Abstract: A manufacturing method of a high-pressure mercury lamp includes an electric field application step in which an electric field is applied to at least a light emission part (4) with the high-pressure mercury lamp being kept at a high temperature. This can reduce impurities such as hydrogen and alkali metals in a discharge space (8) and glass forming the light emission part (4). As a consequence, blackening and devitrification of the high-pressure mercury lamp while the lamp is lit can be reduced.
    Type: Grant
    Filed: March 17, 2004
    Date of Patent: January 31, 2012
    Assignee: Panasonic Corporation
    Inventors: Jun Sakaguchi, Syunsuke Ono, Yoshitaka Kurimoto, Toshiyuki Shimizu, Shinichiro Hataoka, Kiyoshi Takahashi, Takashi Tsutatani, Tomoyuki Seki, Makoto Horiuchi, Tsuyoshi Ichibakase
  • Patent number: 8049398
    Abstract: A long-life high-pressure discharge lamp can (i) suppress damage to sealing portions, especially at an initial stage of the accumulated lighting time, (ii) allow for easy assembly of components such as electrodes and (iii) prevent deformation/ripping of metallic foils. An arc tube is a glass enveloping vessel with electrodes arranged therein, and includes: a light emitting portion in which materials are enclosed and a discharge space is formed; and sealing portions provided at ends of the light emitting portion. Each electrode includes an electrode bar whose first end is in the discharge space, and whose second end is in the corresponding sealing portion and connected to a metallic foil. The second end of each electrode bar is partially wrapped around by a sleeve-like metallic cover foil that has a cut-out section positioned over a joining area where the second end of each electrode bar is joined to the metallic foil.
    Type: Grant
    Filed: September 16, 2008
    Date of Patent: November 1, 2011
    Assignee: Panasonic Corporation
    Inventors: Yoshiki Kitahara, Katsuhiro Ono, Jun Sakaguchi
  • Publication number: 20100231872
    Abstract: The present invention is directed to a method for manufacturing a high-pressure discharge lamp including: a spherical portion forming a light-emitting portion (1a); sealing portions that are connected with both ends of the spherical portion; an electrode (2a) that is sealed to each of the sealing portions; and a metal foil (3a) that is connected with a rear end of each electrode. A vessel provided with a cylindrical glass tube (8) on both ends of the spherical portion is used, a connection structure of the metal foil and the electrode are disposed in the glass tube such that a front end of the electrode is positioned in the spherical portion, and the glass tube is melted by heat and shrunk for sealing the metal foil and the electrode so as to form the sealing portion. An inner diameter ? of the glass tube before the heat-melt processing and a distance L from an edge of the metal foil to the internal space of the spherical portion are set to satisfy a relationship of L/??1.
    Type: Application
    Filed: June 8, 2007
    Publication date: September 16, 2010
    Applicant: PANASONIC CORPORATION
    Inventors: Yoshiki Kitahara, Katsuhiro Ono, Jun Sakaguchi, Ryo Minamihata
  • Publication number: 20100188855
    Abstract: A short arc high-pressure discharge lamp has an arc tube 1 made of quartz glass including a light-emitting portion 2 that fills mercury inside thereof and has a pair of electrodes arranged so as to face each other, and a sealing portion 3 connected to the light-emitting portion. The pair of electrodes have an electrode bar 5a, one end of the electrode bar is located in an internal space of the light-emitting portion, and the other end of the electrode bar is embedded in the sealing portion and bonded to a conductive metal-foil 7 sealed in the sealing portion. In at least a part of a portion of the electrode bar embedded in the sealing portion, the entire outer peripheral surface thereof is covered tightly with a metal-foil sleeve 7a.
    Type: Application
    Filed: July 14, 2008
    Publication date: July 29, 2010
    Applicant: PANASONIC CORPORATION
    Inventors: Jun Sakaguchi, Yoshiki Kitahara, Katsuhiro Ono
  • Publication number: 20100097069
    Abstract: An image display device accurately evaluates the possibility of problems occurring due to the state of impure gas inside a discharge envelope in a high pressure discharge lamp. The image display device includes the high voltage discharge lamp and an evaluation unit (51) for evaluating the possibility of problems occurring due to the state of impure gas. The evaluation unit (51) includes a high voltage pulse generator (57) that generates a high voltage pulse for breaking insulation in the high pressure lamp, a constant current generator (58) that generates a constant current for illuminating the high pressure discharge lamp in a glow discharge state, a lamp voltage measurer (59) that measures lamp voltage during illumination in the glow discharge state, an LED (63), and a controller (65).
    Type: Application
    Filed: October 2, 2007
    Publication date: April 22, 2010
    Inventors: Jun Sakaguchi, Hiroki Ogawa, Yoshiki Kitahara, Katsuhiro Ono, Kiyoshi Takahashi, Minoru Ozasa