Patents by Inventor Akira Akimoto

Akira Akimoto 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).

  • Publication number: 20240334575
    Abstract: A light source including a light-emitting device including a substrate, and a first light-emitting element and a second light-emitting element that are located on the substrate. The light source further includes a drive circuit to supply a current to drive the light-emitting device, a switch configured to switch between a first state of supplying a current to only the first light-emitting element and a second state of supplying a current to only the second light-emitting element, and a timing controller configured to control a timing of an operation of the switch. A light emission peak wavelength of the first light-emitting element is 430 nm or greater and less than 490 nm. A light emission peak wavelength of the second light-emitting element is 490 nm or greater and less than 570 nm. A forward voltage of the second light-emitting element is less than a forward voltage of the first light-emitting element.
    Type: Application
    Filed: March 27, 2024
    Publication date: October 3, 2024
    Applicant: NICHIA CORPORATION
    Inventors: Hajime AKIMOTO, Naoto FUJIWARA, Takeshi MORIKAWA, Akira HORI
  • Publication number: 20240302320
    Abstract: An electrochemical device includes a housing, a first member and a second member provided between the housing and the first member. The housing has a first through hole including a first opening that faces the first member. The second member has a second through hole including a second opening.
    Type: Application
    Filed: February 6, 2024
    Publication date: September 12, 2024
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Akira FUJIMOTO, Yosuke AKIMOTO, Hiroaki YAMAZAKI
  • Publication number: 20240295516
    Abstract: According to one embodiment, a sensor includes an element portion including a first base and a first element. The first element includes, a first fixed member fixed to the first base, a first resistance connecting member supported by the first fixed member, a first conductive connecting member supported by the first fixed member, and a first film portion supported by the first resistance connecting member and the first conductive connecting member. A first gap is provided between the first base and the first film portion. The first film portion includes a first resistance layer and a first conductive layer. The first resistance connecting member includes a first resistance wiring electrically connected to the first resistance layer. The first conductive connecting member includes a first conductive wiring electrically connected to the first conductive layer.
    Type: Application
    Filed: July 19, 2023
    Publication date: September 5, 2024
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Yosuke AKIMOTO, Akira FUJIMOTO, Yoshihiko KURUI, Ping WANG, Hiroaki YAMAZAKI
  • Publication number: 20240295514
    Abstract: According to one embodiment, a sensor includes an element section including a first base and a first element. The first element includes a first fixed member fixed to the first base, a first connecting member supported by the first fixed member, and a first film portion supported by the first connecting member. A first gap is provided between the first base and the first film portion. The first film portion includes a first resistance layer, a first conductive layer, and a first conductive member provided between the first resistance layer and the first conductive layer. A potential of the first conductive member is fixed. A first electrical resistance of the first resistance layer is configured to change according to a state of a detection target around the first element.
    Type: Application
    Filed: August 29, 2023
    Publication date: September 5, 2024
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Yosuke AKIMOTO, Akira FUJIMOTO, Yoshihiko KURUI, Ping WANG, Hiroaki YAMAZAKI
  • Publication number: 20240295513
    Abstract: According to one embodiment, a sensor includes an element section including a first base and a first element. The first element includes a first fixed member fixed to the first base, a first connecting member supported by the first fixed member, and a first film portion supported by the first connecting member. A first gap is provided between the first base and the first film portion. The first film portion includes a first resistance layer, a first conductive layer, and a first conductive member. The first resistance layer does not overlap the first conductive layer in a first direction from the first base to the first fixed member. The first conductive member overlaps the first resistance layer and the first conductive layer in the first direction. A first electrical resistance of the first resistance layer changes according to a state of a detection target around the first element.
    Type: Application
    Filed: July 19, 2023
    Publication date: September 5, 2024
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Yosuke AKIMOTO, Akira FUJIMOTO, Yoshihiko KURUI, Ping WANG, Hiroaki YAMAZAKI
  • Publication number: 20240287277
    Abstract: Provided is a separation and recovery method that is method of separating and recovering, from a mixture containing at least a resin layer 1 containing a hydrolyzable polymer A as a main component and a resin layer 2 containing a nonhydrolyzable polymer B as a main component, a hydrolytic component a of the hydrolyzable polymer A and the nonhydrolyzable polymer B, the method including a decomposition and separation step of subjecting the mixture to a hydrothermal reaction treatment to hydrolyze and separate the hydrolyzable polymer A, and to separate the nonhydrolyzable polymer B while a molecular weight of thereof is maintained.
    Type: Application
    Filed: June 17, 2022
    Publication date: August 29, 2024
    Applicants: UBE Corporation, Keiwa Kogyo Co., Ltd., TOPPAN INC.
    Inventors: Masaru WATANABE, Aritomo YAMAGUCHI, Osamu SATO, Yuuma IRISA, Akira TAKAMA, Kousuke NISHIMURA, Hiroki KUJIRAOKA, Hideki MIYAZAKI, Keita AKIMOTO, Takuya TAKAHATA, Daisuke KUGIMOTO, Shingo KOUDA, Satoshi HAMURA, Takahiro IMAI, Yumiko OMORI, Manabu KAWA
  • Patent number: 10176902
    Abstract: The present invention is a scintillator panel including: a substrate, a barrier rib formed on the substrate, and a scintillator layer containing a phosphor filling cells divided by the barrier rib, wherein the scintillator layer is formed of a plurality of layers having different phosphor concentrations. The present invention provides a scintillator panel in which formation of the barrier rib makes it possible to improve image clarity and obtain a sufficient amount of emitted light.
    Type: Grant
    Filed: November 11, 2014
    Date of Patent: January 8, 2019
    Assignee: Toray Industries, Inc.
    Inventors: Hideyuki Fujiwara, Tetsuo Uchida, Hideki Kinoshita, Akira Akimoto
  • Publication number: 20160293285
    Abstract: The present invention is a scintillator panel including: a substrate, a barrier rib formed on the substrate, and a scintillator layer containing a phosphor filling cells divided by the barrier rib, wherein the scintillator layer is formed of a plurality of layers having different phosphor concentrations. The present invention provides a scintillator panel in which formation of the barrier rib makes it possible to improve image clarity and obtain a sufficient amount of emitted light.
    Type: Application
    Filed: November 11, 2014
    Publication date: October 6, 2016
    Applicant: Toray Industries, Inc.
    Inventors: Hideyuki FUJIWARA, Tetsuo UCHIDA, Hideki KINOSHITA, Akira AKIMOTO
  • Patent number: 6715463
    Abstract: The in-cylinder fuel injection engine is characterized in that fuel is injected into the combustion chamber in two directions. When the homogeneous charge combustion is performed, a first spray block of fuel is injected inside of the cavity and a second spray block of fuel is injected outside of the cavity. When the stratified charge combustion is performed, both spray blocks are injected inside of the cavity.
    Type: Grant
    Filed: June 10, 2003
    Date of Patent: April 6, 2004
    Assignee: Fuji Jukogyo Kabushiki Kaisha
    Inventors: Shinya Kudo, Akira Akimoto
  • Publication number: 20030230275
    Abstract: The in-cylinder fuel injection engine is characterized in that fuel is injected into the combustion chamber in two directions. When the homogeneous charge combustion is performed, a first spray block of fuel is injected inside of the cavity and a second spray block of fuel is injected outside of the cavity. When the stratified charge combustion is performed, both spray blocks are injected inside of the cavity.
    Type: Application
    Filed: June 10, 2003
    Publication date: December 18, 2003
    Applicant: Fuji Jukogyo Kabushiki Kaisha
    Inventors: Shinya Kuno, Akira Akimoto
  • Patent number: 5960767
    Abstract: A combustion chamber of an in-cylinder direct fuel injection spark ignition engine having a pentroof composed of an intake side roof and an exhaust side roof, a piston, and a cylinder. The combustion chamber has a fuel injector provided between the intake side roof and the exhaust side roof inclined toward the exhaust side port, an intake port provided on the intake port side roof at an acute angle with respect to an extended line from the exhaust side roof so as to form a tumble flow of intake air along the exhaust side roof, a piston cavity with a curved surface formed on the top surface of the piston so as to reflect a fuel spray injected from the fuel injector together with that tumble flow in the direction of the intake side roof, and an electrode of a spark plug projected from the intake side roof so as just to collide with the tumble flow.
    Type: Grant
    Filed: February 10, 1997
    Date of Patent: October 5, 1999
    Assignee: Fuji Jukogyo Kabushiki Kaisha
    Inventors: Akira Akimoto, Toshio Yamaji, Keiichi Kakizaki
  • Patent number: 5934249
    Abstract: The EGR gas flow is established based on the difference between an assumed value and a control target value of non-air components partial pressure calculated from target control values such as engine torque and at the same time the intake air flow passing through a throttle valve is established based on the difference between an assumed value and a control target value of air components partial pressure and based on the air components within EGR gas. Further, based on thus established EGR gas flow and the intake manifold pressure, the operating amount of an EGR actuator is calculated and based on thus established air flow passing through the throttle valve, the operating amount of an throttle actuator is obtained. Further, based on an estimated value of air components partial pressure, a final basic fuel injection amount is determined.
    Type: Grant
    Filed: September 3, 1997
    Date of Patent: August 10, 1999
    Assignee: Fuji Jukogyo Kabushiki Kaisha
    Inventors: Atsushi Nanba, Akira Akimoto, Nobuhiro Hakura, Takashi Matsuura
  • Patent number: 5785031
    Abstract: In an in-cylinder fuel injection engine capable of selectively switching a combustion strategy from a stratified charge combustion to a homogeneous charge combustion and vice versa, when a coolant temperature at engine start is lower than a specified temperature, the combustion strategy is established to be a homogeneous charge combustion mode and this homogeneous charge combustion mode is held until the coolant temperature reaches the specified temperature. While the coolant temperature is higher than the specified temperature and lower than a warm-up completion temperature, the combustion strategy is switched from homogeneous to stratified by lowering the engine load from a high load area to a low load area so as to improve emissions and fuel economy.
    Type: Grant
    Filed: June 20, 1997
    Date of Patent: July 28, 1998
    Assignee: Fuji Jukogyo Kabushiki Kaisha
    Inventors: Akira Akimoto, Fujio Takimoto
  • Patent number: 5676108
    Abstract: A combustion control system and method of a four cycle direct injection engine includes an igniter for igniting simultaneously in two cylinders, a firing cylinder and an off-firing cylinder. In the combustion control system, it is judged whether or not the spark discharge period following the ignition timing overlaps with the fuel injection period following the fuel injection starting timing. If it is judged not to overlap, the fuel injection starting timing determined based on the engine speed and the fuel injection amount is let be a final fuel injection starting timing. If it is judged to overlap, the spark discharge ending timing is obtained from the ignition timing and the spark discharge period and this spark discharge ending timing is let be a final fuel injection starting timing.
    Type: Grant
    Filed: May 28, 1996
    Date of Patent: October 14, 1997
    Assignee: Fuji Jukogyo Kabushiki Kaisha
    Inventor: Akira Akimoto
  • Patent number: 5642705
    Abstract: In a catalyst activation control system for a direct fuel injection engine for igniting primary fuel injected into each cylinder, an additional fuel is injected at least once into each cylinder from an early period to a middle period of an expansion stroke of the primary fuel combustion in accordance with the engine operating conditions, to fire the additional injection fuel by flame propagation of the preceding fuel combustion (without re-ignition) for eliminating misfire, so that an exhaust gas temperature can be raised stably to activate catalyst for purification of exhaust gas. Further, any one of the additional fuel injection method and an ignition timing retarding method can be appropriately selected in accordance with the engine operating conditions for economization of fuel.
    Type: Grant
    Filed: September 28, 1995
    Date of Patent: July 1, 1997
    Assignee: Fuji Jukogyo Kabushiki Kaisha
    Inventors: Koji Morikawa, Akira Akimoto
  • Patent number: 5441026
    Abstract: When a damage in a high pressure line of a fuel pressure control system for a high pressure fuel injection engine is detected the fuel pressure is reduced to prevent fuel from blowing out of the damaged part. An acceleration detected by the acceleration sensor is compared with a set value. When the detected acceleration exceeds the set value, the system determines that such an emergency as a collision has happened, fully opens a solenoid type high pressure regulator provided downstream of the high pressure line of fuel system and stops the operation of a feed pump provided in a low pressure delivery line. Thereupon, the feed pump stops delivering the fuel to a high pressure fuel pump. On the other hand, the high pressure regulator is in a fully opened position. Thus, the fuel pressure in the high pressure line is relieved to a fuel tank.
    Type: Grant
    Filed: November 14, 1994
    Date of Patent: August 15, 1995
    Assignee: Fuji Jukogyo Kabushiki Kaisha
    Inventor: Akira Akimoto
  • Patent number: 5394844
    Abstract: Based on the output signal of the fuel sensor, it is judged whether or not the fuel (liquid fuel) is detected in the high pressure fuel system. When the fuel is detected, the count value for counting the detecting time is compared with the predetermined value. If the count value is equal to or larger than the predetermined value, the electromagnetic type high pressure fuel regulator is rendered closed and the starter motor prohibition flag is cleared to admit energizing the starter motor. As a result of this, the engine is permitted to be started and thus the high pressure fuel pump starts to produce the high pressure in the high pressure fuel system, whereby a sticking or a scuffing in the fuel pump due to poor lubrication can be prevented and an overshoot of the fuel pressure or a void injection in the fuel injector can be avoided.
    Type: Grant
    Filed: December 7, 1993
    Date of Patent: March 7, 1995
    Assignee: Fuji Jukogyo Kabushiki Kaisha
    Inventor: Akira Akimoto
  • Patent number: 5384391
    Abstract: A process for preparing polyarylene sulfides which comprises providing at least one cyclic arylene sulfide oligomer of the formula ##STR1## wherein S represents a sulfur atom, groups Ar, which may be the same or different, represent each an arylene radical having 6-24 carbon atoms, groups R, which may be the same or different, represent each a C.sub.1 -C.sub.12 alkyl radical, or a C.sub.1 -C.sub.12 alkoxy radical, or a primary or secondary amino group, n is an integer of from 2 to 50, and m is an integer of from 0 to 15, and heating said cyclic oligomer I in the presence of a ring opening polymerization catalyst so as to form polyarylene sulfide. The process produces polyarylene sulfides improved in chemical, physical and mechanical properties.
    Type: Grant
    Filed: December 27, 1993
    Date of Patent: January 24, 1995
    Assignee: Tosoh Corporation
    Inventors: Hiroshi Miyata, Hiroshi Inoue, Akira Akimoto
  • Patent number: 5233924
    Abstract: Pencil writable and printable synthetic paper comprising a finely porous polyolefin film layer having an opacity of at least 80% obtained by stretching a polyolefin film containing from 8 to 65% by weight of an inorganic fine powder having on one or both sides thereof a stretched ethylene-vinyl alcohol copolymer film layer, at least one of the stretched ethylene-vinyl alcohol copolymer film layers having a coat layer thereon. When printed, the stretched ethylene-vinyl alcohol copolymer film layer prevents hydrocarbon solvents present in printing inks from penetrating into the polyolefin film layer to eliminate local surface unevenness and curling.
    Type: Grant
    Filed: February 26, 1992
    Date of Patent: August 10, 1993
    Assignee: Oji Yuka Goseishi Co., Ltd.
    Inventors: Yozo Ohba, Akira Akimoto, Tokumi Chiba
  • Patent number: 4996959
    Abstract: The quantity of air passing a throttle valve of an engine is calculated and a weight for a weighted average is derived from a map in accordance with throttle valve position and engine speed. Engine load data is obtained by adding a last engine load data at a last program and a quotient calculated by dividing the difference between the throttle passing air quantity per revolution of the engine and the last engine load data by a present weight provided at a present program. Ignition timing is derived from a memory storing a plurality of ignition timings arranged in accordance with present engine load data and present engine speed.
    Type: Grant
    Filed: June 28, 1989
    Date of Patent: March 5, 1991
    Assignee: Fuji Jukogyo Kabushiki Kaisha
    Inventor: Akira Akimoto