Patents by Inventor Akira Iizuka

Akira Iizuka 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: 20240133208
    Abstract: A locking mechanism includes a first member that is provided on one side to lock and is rotated about a rotating shaft, a second member that is provided on the other side to lock and comes into contact with the first member to rotate the first member, a rotation applying member that further applies a rotational force to the first member rotated by the second member, a restriction portion that restricts movement of the first member to be rotated in a direction in which the first member is released from a locked state, and an elastic portion that allows the first member and the restriction portion to be in elastic contact with each other and allows the first member and the restriction portion to start to be in elastic contact with each other before the first member rotated by the second member is further rotated by the rotation applying member in a release direction which is the direction in which the first member is released from the locked state.
    Type: Application
    Filed: April 18, 2023
    Publication date: April 25, 2024
    Applicant: FUJIFILM Business Innovation Corp.
    Inventors: Keigo Shinoto, Shuichi Nishide, Michiaki Yoshida, Akira Ueshima, Akira Tanaka, Takahiro Iizuka, Wataru Nakamura
  • Publication number: 20240137450
    Abstract: An attachment structure according to the present disclosure includes: a conveyance device provided at a support portion disposed on an upper portion of a recording unit that records an image, the conveyance device conveying an object to be conveyed and reading information; a support portion cover that is provided at an outer surface of the support portion; an upper cover that is provided at an outer surface of the conveyance device and is disposed alongside an upper side of the support portion cover; an attachment member that is attached to a to-be-attached portion disposed inside the support portion, and that positions the support portion cover; and an adjustment portion that adjusts an attachment position of the attachment member to the to-be-attached portion by performing fixing using any one of a plurality of fixing portions that are disposed so as to be staggered in a device width direction.
    Type: Application
    Filed: March 13, 2022
    Publication date: April 25, 2024
    Inventors: Akira NUMAZAKI, Takahiro IIZUKA
  • Publication number: 20240126202
    Abstract: An apparatus includes a housing, a cover that is opened and closed on the housing, a detection part that detects opening and closing of the cover using ON and OFF, a rotating part that is rotatably supported and turns on and off the detection part, a pushing portion that comes into contact with the rotating part to rotate the rotating part in a case where the cover is closed, and a rotation applying part that applies a rotational force to the rotating part rotated by the pushing portion in a direction in which the detection part is turned on in a case where the cover is closed.
    Type: Application
    Filed: April 13, 2023
    Publication date: April 18, 2024
    Applicant: FUJIFILM Business Innovation Corp.
    Inventors: Akira TANAKA, Keigo Shinoto, Shuichi Nishide, Michiaki Yoshida, Akira Ueshima, Takahiro IIzuka, Wataru Nakamura
  • Patent number: 11914285
    Abstract: The present invention provides an FPD pellicle frame body in which external color is controlled so as to make it easy to prevent scattering of exposure light, to perform the foreign object non-adhesion inspection before use, and the like, and a method for manufacturing the frame body efficiently. The FPD pellicle frame body of the present invention comprises: a stainless-steel member having a transparent oxide coating, and a film thickness of the transparent oxide coating being 420 nm to 700 nm. It is preferable that a brightness index L* due to the interference color of the reflected lights from the surface of the transparent oxide coating and the surface of the stainless-steel member is 33 or less.
    Type: Grant
    Filed: August 23, 2019
    Date of Patent: February 27, 2024
    Assignee: NIPPON LIGHT METAL COMPANY, LTD.
    Inventors: Naoto Komura, Koichi Nakano, Akira Iizuka
  • Publication number: 20230175159
    Abstract: The present invention provides: an aluminum alloy member which can be manufactured at a relatively low cost and has a light weight, and which can have high dimensional accuracy under a high-temperature environment and is less likely to undergo the color-fading of a blackened surface even under a high-temperature environment, and has excellent heat resistance; and a method for manufacturing the aluminum alloy member with high efficiency. The aluminum alloy member according to the present invention comprises: a substrate which comprises an extruded material of an aluminum powder alloy having an Si content of 20 to 40% by mass and has an anodic oxide coating film formed on the surface thereof, and an electrolytically colored layer which is formed by precipitating a metal or a metal salt on voids in the anodic oxide coating film.
    Type: Application
    Filed: March 10, 2021
    Publication date: June 8, 2023
    Inventors: Akira IIZUKA, Naoto KOMURA, Koichi NAKANO
  • Publication number: 20220397704
    Abstract: The present invention provides: a lightweight optical member which can be produced at relatively low cost and which provides low reflectance, stability upon exposure to light, and abrasion resistance; and an efficient method for producing such an optical member. An optical member according to the present invention is characterized by comprising: a metallic base material; a low-reflective treatment layer formed on the surface of the metallic base material; and a silica layer formed on the surface of the low-reflective treatment layer. It is preferable for the silica layer to have a layer thickness of 0.1-10 ?M.
    Type: Application
    Filed: October 29, 2020
    Publication date: December 15, 2022
    Inventors: Akira IIZUKA, Takeshi OSHIMA, Koichi NAKANO
  • Patent number: 11433141
    Abstract: An object is to produce a new anti-B7-H4 antibody having high specificity and affinity and provide a composition for treating cancer making use thereof. A monoclonal antibody that specifically binds to an extracellular domain protein of a human B7-H4 protein is newly produced and an “anti-B7-H4 antibody-effector cell complex” in which the monoclonal antibody and an effector cell are bound in order to enhance the antibody-dependent cellular cytotoxicity of the monoclonal antibody or a bispecific antibody comprising an antigen recognition region of the monoclonal antibody and an effector cell antigen recognition region is further produced and used as a composition for treating cancer.
    Type: Grant
    Filed: July 25, 2017
    Date of Patent: September 6, 2022
    Assignee: SHIZUOKA PREFECTURE
    Inventors: Yasuto Akiyama, Akira Iizuka
  • Patent number: 11293371
    Abstract: Provided is a technique for identifying a variation in an injection amount by estimating a valve opening start timing in an extremely small injection region of a half lift region. Therefore, a fuel injection control device according to the present invention estimates a valve opening start timing of a fuel injection valve by referring to a characteristic of a reference fuel injection valve acquired in advance.
    Type: Grant
    Filed: July 4, 2019
    Date of Patent: April 5, 2022
    Assignee: HITACHI ASTEMO, LTD.
    Inventors: Kotaro Oki, Osamu Mukaihara, Fumihiro Itaba, Akira Iizuka
  • Patent number: 11236697
    Abstract: The present invention provides a high-efficiency and highly-reliable fuel injection control device that controls a fuel injection valve of an internal combustion engine and can perform injection amount control in accordance with a deterioration degree of the fuel injection valve. A fuel injection control device controlling a fuel injection valve of an internal combustion engine includes a deterioration determination unit that determines a deterioration state of the fuel injection valve, an injection amount learning unit that learns the injection amount of the fuel injection valve, and a learning frequency change unit that changes the learning frequency of the injection amount learning unit in accordance with the deterioration state of the fuel injection valve.
    Type: Grant
    Filed: February 1, 2019
    Date of Patent: February 1, 2022
    Assignee: HITACHI AUTOMOTIVE SYSTEMS, LTD.
    Inventors: Fumihiro Itaba, Osamu Mukaihara, Akira Iizuka
  • Publication number: 20210325571
    Abstract: The present invention provides a lightweight optical member that can be produced at a relatively low cost, wherein distortion due to temperature rise is suppressed, and the appearance color is sufficiently blackened or darkened, and a method for efficiently producing the optical member. The optical member of the present invention comprises: a base member made of titanium or a titanium alloy, and a carbon-doped titanium oxide layer formed on the surface of the base member. The carbon content in the carbon-doped titanium oxide layer is preferably 0.1 to 15 at %.
    Type: Application
    Filed: August 23, 2019
    Publication date: October 21, 2021
    Inventors: Akira IIZUKA, Takeshi OSHIMA, Koichi NAKANO
  • Patent number: 11098669
    Abstract: An internal combustion engine control device that can ensure diagnosis of whether a fuel injection cut function normally works and that further permits startup of an internal combustion engine in a case in which the fuel injection cut function normally works is provided. To attain the internal combustion engine control system, the startup of the internal combustion engine is prohibited when carrying of a diagnostic monitoring current based on a diagnostic drive signal related to each of fuel injection valves to each of fuel injection valves in a case of transmitting a drive prohibition signal related to each of fuel injection valves to a fuel injection valve drive circuit before the startup of the internal combustion engine and transmitting the diagnostic drive signal related to each of fuel injection valves to the fuel injection valve drive circuit.
    Type: Grant
    Filed: February 14, 2019
    Date of Patent: August 24, 2021
    Assignee: Hitachi Automotive Systems, Ltd.
    Inventors: Akira Iizuka, Osamu Mukaihara, Koichi Tsukio, Takanori Umeki
  • Publication number: 20210240072
    Abstract: The present invention provides an FPD pellicle frame body in which external color is controlled so as to make it easy to prevent scattering of exposure light, to perform the foreign object non-adhesion inspection before use, and the like, and a method for manufacturing the frame body efficiently. The FPD pellicle frame body of the present invention comprises: a stainless-steel member having a transparent oxide coating, and a film thickness of the transparent oxide coating being 420 nm to 700 nm. It is preferable that a brightness index L* due to the interference color of the reflected lights from the surface of the transparent oxide coating and the surface of the stainless-steel member is 33 or less.
    Type: Application
    Filed: August 23, 2019
    Publication date: August 5, 2021
    Inventors: Naoto KOMURA, Koichi NAKANO, Akira IIZUKA
  • Publication number: 20210180534
    Abstract: The present invention provides a high-efficiency and highly-reliable fuel injection control device that controls a fuel injection valve of an internal combustion engine and can perform injection amount control in accordance with a deterioration degree of the fuel injection valve. A fuel injection control device controlling a fuel injection valve of an internal combustion engine includes a deterioration determination unit that determines a deterioration state of the fuel injection valve, an injection amount learning unit that learns the injection amount of the fuel injection valve, and a learning frequency change unit that changes the learning frequency of the injection amount learning unit in accordance with the deterioration state of the fuel injection valve.
    Type: Application
    Filed: February 1, 2019
    Publication date: June 17, 2021
    Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.
    Inventors: Fumihiro ITABA, Osamu MUKAIHARA, Akira IIZUKA
  • Publication number: 20210173298
    Abstract: To provide a pellicle frame for FPD (flat Panel display), which can maintain the rigidity required for a pellicle for a large FPD (flat Panel display) even if the cross-sectional area of the frame is reduced and can enlarge the inner dimensions of the frame by reducing the cross-sectional area, and has high dimensional accuracy and flatness, and an efficient manufacturing method thereof. The present invention provides a pellicle frame for FPD (flat panel display) composed of an extruded material of an aluminum alloy powder sintered body containing Si: 20 to 40% by mass, Mg: 0.2 to 1.2% by mass, Cu: 2% by mass or less, Fe: 2% by mass or less, Cr: 0.4% by mass or less, the balance being Al and unavoidable impurities to provide.
    Type: Application
    Filed: October 30, 2018
    Publication date: June 10, 2021
    Inventors: Akira IIZUKA, Koichi NAKANO, Naoto KOMURA, Masato YATSUKURA, Yuto OKABATAKE
  • Publication number: 20210164414
    Abstract: Provided is a technique for identifying a variation in an injection amount by estimating a valve opening start timing in an extremely small injection region of a half lift region. Therefore, a fuel injection control device according to the present invention estimates a valve opening start timing of a fuel injection valve by referring to a characteristic of a reference fuel injection valve acquired in advance.
    Type: Application
    Filed: July 4, 2019
    Publication date: June 3, 2021
    Applicant: Hitachi Automotive Systems, Ltd.
    Inventors: Kotaro OKI, Osamu MUKAIHARA, Fumihiro ITABA, Akira IIZUKA
  • Patent number: 10995655
    Abstract: A fuel injection device including a valve body having an injection hole-formed part having a plurality of injection holes on the leading end side of the valve body. An injection hole comprises a crossing angle, ?1, between a central axis of the injection hole-formed part and an injection hole axis, and another injection hole comprises a crossing angle, ?2, between the central axis and another injection hole axis. ?2 is larger than ?1. The injection holes are formed such that a distance between the central axis and an inlet surface center of the injection hole is longer than a distance between the central axis and another inlet surface center of the another injection hole. A straight line beyond an outlet surface in the injection hole axis does not intersect with another straight line beyond another outlet surface in the another injection hole axis.
    Type: Grant
    Filed: November 21, 2017
    Date of Patent: May 4, 2021
    Assignee: HITACHI AUTOMOTIVE SYSTEMS, LTD.
    Inventors: Akira Iizuka, Tohru Ishikawa, Takao Miyake, Kazuki Yoshimura
  • Patent number: 10823102
    Abstract: A control device for a fuel injection valve including a variable lift mechanism of two or more stages is provided. The control device includes an inflection point detection unit for detecting an inflection point from at least one of a drive current when the fuel injection valve is opened or a drive voltage when the fuel injection valve is closed. The control device also includes a drive sensing unit for sensing a drive lift of the fuel injection valve from at least one of an inflection point of a drive current during valve opening operation or a drive voltage during valve closing operation. The control device is configured to limit the command drive lift when the sensed drive lift is different from a command drive lift.
    Type: Grant
    Filed: March 6, 2018
    Date of Patent: November 3, 2020
    Assignee: HITACHI AUTOMOTIVE SYSTEMS, LTD.
    Inventors: Fumihiro Itaba, Osamu Mukaihara, Akiyasu Miyamoto, Akira Iizuka
  • Publication number: 20200340418
    Abstract: An internal combustion engine control device that can ensure diagnosis of whether a fuel injection cut function normally works and that further permits startup of an internal combustion engine in a case in which the fuel injection cut function normally works is provided. To attain the internal combustion engine control system, the startup of the internal combustion engine is prohibited when carrying of a diagnostic monitoring current based on a diagnostic drive signal related to each of fuel injection valves to each of fuel injection valves in a case of transmitting a drive prohibition signal related to each of fuel injection valves to a fuel injection valve drive circuit before the startup of the internal combustion engine and transmitting the diagnostic drive signal related to each of fuel injection valves to the fuel injection valve drive circuit.
    Type: Application
    Filed: February 14, 2019
    Publication date: October 29, 2020
    Inventors: Akira IIZUKA, Osamu MUKAIHARA, Koichi TSUKIO, Takanori UMEKI
  • Patent number: 10815949
    Abstract: Provided is a structure capable of reducing dribbling of fuel generated when a valve body is closed. In order to achieve the above object, a fuel injection device includes: a valve body; and a seat member having a seat portion on which the valve body is seated and having a fuel injection hole formed on a downstream side of the seat portion. The seat member is formed such that a gap between the seat member and the opposing valve body in the whole region on the downstream side of the fuel injection hole is smaller than a diameter of the fuel injection hole.
    Type: Grant
    Filed: April 13, 2017
    Date of Patent: October 27, 2020
    Assignee: HITACHI AUTOMOTIVE SYSTEMS, LTD.
    Inventors: Yoshihito Yasukawa, Kiyotaka Ogura, Takao Miyake, Akira Iizuka, Kazuki Yoshimura, Akiyasu Miyamoto
  • Publication number: 20200088123
    Abstract: In a fuel injection valve including a variable lift mechanism of two or more stages, when fuel is injected with a lift different from a command, exhaust emission deterioration and torque fluctuations may occur. A control device for a fuel injection valve including a variable lift mechanism of two or more stages is provided, which senses a drive lift of the fuel injection valve from an inflection point of a drive current during valve opening operation or a drive voltage during valve closing operation, and limits the command drive lift when the sensed drive lift is different from a command drive lift.
    Type: Application
    Filed: March 6, 2018
    Publication date: March 19, 2020
    Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.
    Inventors: Fumihiro ITABA, Osamu MUKAIHARA, Akiyasu MIYAMOTO, Akira IIZUKA