Patents by Inventor Akinori Nakayama

Akinori Nakayama 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: 11912099
    Abstract: An automatic driving vehicle, that is automatically movable, includes a front window, a LIDAR disposed at an inner side of the front window and configured to acquire external world information on an automatic movement, a display device disposed at the inner side of the front window, a cover member covering the LIDAR and the display device, and a blowout port configured to discharge air toward the LIDAR and the display device along the inner side of the front window. The cover member includes a first introduction port formed by a gap between a portion overlapping the LIDAR in a width direction of the moving body and the front window, and a second introduction port formed by a gap between a portion overlapping the display device in the width direction and the front window. The gap of the first introduction port is larger than the gap of the second introduction port.
    Type: Grant
    Filed: August 16, 2021
    Date of Patent: February 27, 2024
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Shingo Nakayama, Akinori Myoi
  • Patent number: 8390421
    Abstract: A semiconductor ceramic and a positive-coefficient characteristic thermistor are provided which have a stable PTC characteristic, a high double point, and a wide operating temperature range. The semiconductor ceramic contains, as a main component, a barium titanate-based composition having a perovskite structure expressed by a general formula AmBO3. Out of 100 mol % of the Ti, an amount in a range of 0.05 mol % or more to 0.3 mol % or less of Ti is replaced with W as a semiconductor forming agent, the ratio m of A sites mainly to B sites is 0.99?m?1.002, and an actually-measured sintered density is 70% or more and 90% or less of the theoretical sintered density. In the positive-coefficient characteristic thermistor, a component body is formed of the semiconductor ceramic.
    Type: Grant
    Filed: December 15, 2011
    Date of Patent: March 5, 2013
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Atsushi Kishimoto, Wataru Aoto, Akinori Nakayama
  • Patent number: 8350662
    Abstract: A semiconductor ceramic includes a BamTiO3-based composition, as a main component, having a perovskite structure represented by general formula AmBO3, wherein part of Ba constituting the A site is replaced with Na, Bi, Ca, and a rare-earth element having an ionic radius smaller than that of the Na; the content of the rare-earth element when the total number of moles of the elements constituting the A site is 1 mole is 0.0005 to 0.015 on a molar basis; and the content of the Ca when the total number of moles of the elements constituting the A site is 1 mole is 0.05 to 0.20 (preferably 0.125 or more and 0.175 or less) on a molar basis. A PTC thermistor includes a component body 1 formed of the semiconductor ceramic. Accordingly, high reliability is achieved even if an alkali metal element is present.
    Type: Grant
    Filed: June 7, 2011
    Date of Patent: January 8, 2013
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Naoaki Abe, Hayato Katsu, Masato Goto, Atsushi Kishimoto, Akinori Nakayama
  • Patent number: 8289125
    Abstract: A semiconductor ceramic includes a BamTiO3-based composition, as a main component, having a perovskite structure represented by general formula AmBO3. The molar ratio m between the A site and the B site satisfies 1.001?m?1.01. Part of Ba constituting the A site is replaced with Bi, Ca, a rare-earth element, and Na. The molar content of the Ca when the total number of moles of the elements constituting the A site is 1 mole is 0.05 to 0.20 (preferably 0.125 to 0.175). A PTC thermistor includes a component body formed of the semiconductor ceramic. Accordingly, there is provided a lead-free semiconductor ceramic that substantially does not contain lead and that has desired PTC characteristics and high reliability.
    Type: Grant
    Filed: May 19, 2011
    Date of Patent: October 16, 2012
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Atsushi Kishimoto, Hayato Katsu, Masato Goto, Naoaki Abe, Akinori Nakayama
  • Patent number: 8284013
    Abstract: A semiconductor ceramic includes a BamTiO3-based composition, as a main component, having a perovskite structure represented by general formula AmBO3. Part of Ba constituting an A site is replaced with at least an alkali metal element, Bi, and a rare-earth element, and the molar ratio m between the A site and a B site is 0.990?m?0.999 (preferably 0.990?m?0.995). Preferably, part of the Ba is replaced with Ca, and the content of the Ca when the total number of moles of the elements constituting the A site is 1 mole is 0.042 to 0.20 (preferably 0.125 to 0.175) on a molar basis. A PTC thermistor includes a component body formed of the semiconductor ceramic. Accordingly, there are provided satisfactory rise characteristics even if an alkali metal element is present.
    Type: Grant
    Filed: May 19, 2011
    Date of Patent: October 9, 2012
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Masato Goto, Hayato Katsu, Naoaki Abe, Atsushi Kishimoto, Akinori Nakayama
  • Patent number: 8228161
    Abstract: A semiconductor ceramic includes a BaTiO3-based composition, as a main component, having a perovskite structure represented by general formula AmBO3. Part of the A site Ba is replaced with an alkali metal element, Bi, Ca, Sr, and a rare-earth element. When the molar amounts of Ca and Sr are x and y, respectively, and the total number of moles of the elements constituting the A site is 1 mole, 0.05?x?0.20, 0.02?y?0.12, and 2x+5y?0.7. A PTC thermistor includes a component body formed of the semiconductor ceramic. Even when an alkali metal element and Bi are present, there is provided a lead-free semiconductor ceramic with high reliability in which the surface discoloration is not caused and the degradation of resistance over time can be suppressed even after the application of an electric current for a long time.
    Type: Grant
    Filed: May 10, 2011
    Date of Patent: July 24, 2012
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Naoaki Abe, Hayato Katsu, Masato Goto, Atsushi Kishimoto, Akinori Nakayama
  • Publication number: 20120081206
    Abstract: A semiconductor ceramic and a positive-coefficient characteristic thermistor are provided which have a stable PTC characteristic, a high double point, and a wide operating temperature range. The semiconductor ceramic contains, as a main component, a barium titanate-based composition having a perovskite structure expressed by a general formula AmBO3. Out of 100 mol % of the Ti, an amount in a range of 0.05 mol % or more to 0.3 mol % or less of Ti is replaced with W as a semiconductor forming agent, the ratio m of A sites mainly to B sites is 0.99?m?1.002, and an actually-measured sintered density is 70% or more and 90% or less of the theoretical sintered density. In the positive-coefficient characteristic thermistor, a component body is formed of the semiconductor ceramic.
    Type: Application
    Filed: December 15, 2011
    Publication date: April 5, 2012
    Applicant: MURATA MANUFACTURING CO., LTD.
    Inventors: Atsushi Kishimoto, Wataru Aoto, Akinori Nakayama
  • Publication number: 20110234364
    Abstract: A semiconductor ceramic includes a BamTiO3-based composition, as a main component, having a perovskite structure represented by general formula AmBO3, wherein part of Ba constituting the A site is replaced with Na, Bi, Ca, and a rare-earth element having an ionic radius smaller than that of the Na; the content of the rare-earth element when the total number of moles of the elements constituting the A site is 1 mole is 0.0005 to 0.015 on a molar basis; and the content of the Ca when the total number of moles of the elements constituting the A site is 1 mole is 0.05 to 0.20 (preferably 0.125 or more and 0.175 or less) on a molar basis. A PTC thermistor includes a component body 1 formed of the semiconductor ceramic. Accordingly, high reliability is achieved even if an alkali metal element is present.
    Type: Application
    Filed: June 7, 2011
    Publication date: September 29, 2011
    Applicant: MURATA MANUFACTURING CO., LTD.
    Inventors: Naoaki Abe, Hayato Katsu, Masato Goto, Atsushi Kishimoto, Akinori Nakayama
  • Publication number: 20110215894
    Abstract: A semiconductor ceramic includes a BamTiO3-based composition, as a main component, having a perovskite structure represented by general formula AmBO3. The molar ratio m between the A site and the B site satisfies 1.001?m?1.01. Part of Ba constituting the A site is replaced with Bi, Ca, a rare-earth element, and Na. The molar content of the Ca when the total number of moles of the elements constituting the A site is 1 mole is 0.05 to 0.20 (preferably 0.125 to 0.175). A PTC thermistor includes a component body formed of the semiconductor ceramic. Accordingly, there is provided a lead-free semiconductor ceramic that substantially does not contain lead and that has desired PTC characteristics and high reliability.
    Type: Application
    Filed: May 19, 2011
    Publication date: September 8, 2011
    Applicant: MURATA MANUFACTURING CO., LTD.
    Inventors: Atsushi Kishimoto, Hayato Katsu, Masato Goto, Naoaki Abe, Akinori Nakayama
  • Publication number: 20110215895
    Abstract: A semiconductor ceramic includes a BamTiO3-based composition, as a main component, having a perovskite structure represented by general formula AmBO3. Part of Ba constituting an A site is replaced with at least an alkali metal element, Bi, and a rare-earth element, and the molar ratio m between the A site and a B site is 0.990?m?0.999 (preferably 0.990?m?0.995). Preferably, part of the Ba is replaced with Ca, and the content of the Ca when the total number of moles of the elements constituting the A site is 1 mole is 0.042 to 0.20 (preferably 0.125 to 0.175) on a molar basis. A PTC thermistor includes a component body formed of the semiconductor ceramic. Accordingly, there are provided satisfactory rise characteristics even if an alkali metal element is present.
    Type: Application
    Filed: May 19, 2011
    Publication date: September 8, 2011
    Applicant: MURATA MANUFACTURING CO., LTD.
    Inventors: Masato Goto, Hayato Katsu, Naoaki Abe, Atsushi Kishimoto, Akinori Nakayama
  • Publication number: 20110210815
    Abstract: A semiconductor ceramic includes a BaTiO3-based composition, as a main component, having a perovskite structure represented by general formula AmBO3. Part of the A site Ba is replaced with an alkali metal element, Bi, Ca, Sr, and a rare-earth element. When the molar amounts of Ca and Sr are x and y, respectively, and the total number of moles of the elements constituting the A site is 1 mole, 0.05?x?0.20, 0.02?y?0.12, and 2x+5y?0.7. A PTC thermistor includes a component body formed of the semiconductor ceramic. Even when an alkali metal element and Bi are present, there is provided a lead-free semiconductor ceramic with high reliability in which the surface discoloration is not caused and the degradation of resistance over time can be suppressed even after the application of an electric current for a long time.
    Type: Application
    Filed: May 10, 2011
    Publication date: September 1, 2011
    Applicant: MURATA MANUFACTURING CO., LTD.
    Inventors: Naoaki Abe, Hayato Katsu, Masato Goto, Atsushi Kishimoto, Akinori Nakayama
  • Publication number: 20100178854
    Abstract: Disclosed are a projector comprising an impeller rotated at high speed by a high-speed rotation driving device and a cover for covering the outer peripheral part of the impeller and having a projection material suction port and a projection material discharge port; and a blasting machine. In the projector, the entire of the impeller or the portion of the impeller with which the projection material is collided is formed of a high wear resistant rubber. It is possible to prevent the impeller and the projection material from damage, and to improve the durability of the projector. Furthermore, projection materials having high grinding property or those having fine particles and low specific gravity may also be used for the projector. Since the weight of the projector is light, it can be rotated directly by a motor at high speed and can be used under such conditions as ultra low temperature, ordinary temperature, high moisture, etc.
    Type: Application
    Filed: December 20, 2005
    Publication date: July 15, 2010
    Applicant: NISSANKI cO., Ltd.
    Inventor: Akinori Nakayama
  • Publication number: 20070032179
    Abstract: The shot blast machine having a projector with an impeller includes the impeller which is made of a high abrasion-resistant rubber. Therefore, it can increase the durability without damage of the impeller and projectile; it can use the projectile with high grindability, with small particle and light gravity; and it can be used at any condition including extreme cold, normal temperature, wet condition and the like.
    Type: Application
    Filed: September 10, 2005
    Publication date: February 8, 2007
    Applicant: NISSANKI Co., Ltd.
    Inventor: Akinori Nakayama
  • Publication number: 20070032178
    Abstract: The shot blast machine having a projector with an impeller includes the impeller which is made of a high abrasion-resistant rubber. Therefore, it can increase the durability without damage of the impeller and projectile; it can use the projectile with high grindability, with small particle and light gravity; and it can be used at any condition including extreme cold, normal temperature, wet condition and the like.
    Type: Application
    Filed: August 2, 2005
    Publication date: February 8, 2007
    Applicant: NISSANKI Co., Ltd.
    Inventor: Akinori Nakayama
  • Patent number: 7124930
    Abstract: A gear pump having an inner rotor and an outer rotor is covered by a cylindrical outer casing and side casings. The cylindrical outer casing has two outer circumferential edges which are welded over the entire circumference thereof to the outer edges of the side casings, respectively. The outer casing has two angularly spaced recesses in its inner periphery for receiving slide seals therein. Welding is started at a welding start point which is 90 degrees spaced from the middle point between two recesses. During welding, welding energies are applied to the welding start point and the middle point between two recesses. Those energies tend to deform the casing into oval shapes that are 90 degrees out of phase from each other. Thus, these energies cancel each other, thereby preventing the casing from being deformed.
    Type: Grant
    Filed: July 24, 2003
    Date of Patent: October 24, 2006
    Assignees: Advics Co., Ltd., Denso Corporation
    Inventors: Fumiyoshi Ariki, Hitoshi Mizutani, Akinori Nakayama, Yasunori Kawamoto, Hideaki Shirai
  • Patent number: 7075404
    Abstract: A varistor is provided which can be driven at a low voltage, has a small leak current, and can realize a high ESD resistance and a high surge resistance. The varistor is formed using a ceramic composition for a varistor which contains zinc oxide as a primary component and sub-components including praseodymium at a content of 0.05 to 3.0 atomic percent of the total, cobalt at a content of 0.5 to 10 atom percent of the total, at least one of potassium, sodium, and lithium at a total content of 0.005 to 0.5 atom percent of the total, at least one of aluminum, gallium, and indium at a total content of 2×10?5 to 0.5 atom percent of the total, and zirconium at a content of 0.005 to 5.0 atom percent of the total.
    Type: Grant
    Filed: August 13, 2003
    Date of Patent: July 11, 2006
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Sakyo Hirose, Akinori Nakayama, Kousuke Shiratsuyu
  • Patent number: 7070487
    Abstract: A washing device includes a case body; a table installed into the case body for supporting a workpiece which is to be cleaned; an solid cleaning substance feeding device having an impeller, capable of projecting an solid cleaning substance and a cleaning liquid to the work; an solid cleaning substance supply which supplies the solid cleaning substance to the solid cleaning substance feeding device by driving the impeller; and a cleaning liquid supply which supplies the cleaning liquid to the impeller when the solid cleaning substance feeding device drives so that it can remove paint, a mold release agent, dirt, oil dirt, etc. in a short time and can be used again and again. The device can use a cleaning agent, such as a surface-active agent, an antirust agent, a degreasing agent, warm water, water, and prevents pollution of the environment, the human body, and the subsoil.
    Type: Grant
    Filed: March 20, 2003
    Date of Patent: July 4, 2006
    Assignee: Nissanki Co., Ltd.
    Inventor: Akinori Nakayama
  • Publication number: 20050176353
    Abstract: The upper opening which opens the blast-processing chamber can be opened after the door moves slidely to the up and down directions, the door does not project outwardly from the case when the door is opened, it can be installed to the small space. Also it can be prevented to collide against the door.
    Type: Application
    Filed: February 11, 2004
    Publication date: August 11, 2005
    Applicant: NISSANKI Co., Ltd.
    Inventor: Akinori Nakayama
  • Patent number: 6926594
    Abstract: The upper opening which opens the blast-processing chamber can be opened after the door moves slidely to the up and down directions, the door does not project outwardly from the case when the door is opened, it can be installed to the small space. Also it can be prevented to collide against the door.
    Type: Grant
    Filed: February 11, 2004
    Date of Patent: August 9, 2005
    Assignee: Nissanki Co., Ltd.
    Inventor: Akinori Nakayama
  • Publication number: 20050143262
    Abstract: A varistor is provided which can be driven at a low voltage, has a small leak current, and can realize a high ESD resistance and a high surge resistance. The varistor is formed using a ceramic composition for a varistor which contains zinc oxide as a primary component and sub-components including praseodymium at a content of 0.05 to 3.0 atomic percent of the total, cobalt at a content of 0.5 to 10 atom percent of the total, at least one of potassium, sodium, and lithium at a total content of 0.005 to 0.5 atom percent of the total, at least one of aluminum, gallium, and indium at a total content of 2×10?5 to 0.5 atom percent of the total, and zirconium at a content of 0.005 to 5.0 atom percent of the total.
    Type: Application
    Filed: August 13, 2003
    Publication date: June 30, 2005
    Inventors: Sakyo Hirose, Akinori Nakayama, Kousuke Shiratsuyu