Patents by Inventor Masaki Ota

Masaki Ota 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: 20250149823
    Abstract: There is provided a connector including: a housing having a fitting portion to be fitted to a counterpart connector; a cover assembled to an opening opposite to the fitting portion; an annular seal member sealing a gap between an inner peripheral side seal surface of the opening and an outer peripheral side seal surface of the cover; and a plurality of reinforcing ribs disposed at predetermined intervals along an inner peripheral surface of the housing and extending along an assembling direction of the cover. When the cover is assembled to the opening, an end in an extension direction of the reinforcing ribs on an opening end side of the opening faces the seal member, thereby preventing the seal member from falling off from the inner peripheral side seal surface and the outer peripheral side seal surface.
    Type: Application
    Filed: October 7, 2024
    Publication date: May 8, 2025
    Inventors: Sota Kawarasaki, Ryo Yamashita, Masaki Ota
  • Publication number: 20250149824
    Abstract: There is provided a connector including: a housing having a fitting portion to be fitted to a counterpart connector; a cover assembled to an opening opposite to the fitting portion; an annular seal member sealing a gap between the opening and the cover; a plurality of reinforcing ribs disposed at predetermined intervals along an inner peripheral surface of the housing and extending along an assembling direction of the cover, the inner peripheral surface of the housing being located behind the inner peripheral side seal surface of the opening; engaging projections projecting from an inner bottom surface of the cover and configured to restrict displacement of the cover with respect to the housing by being meshed with the reinforcing ribs; a component fixed to the cover; and a fixing bolt screwed into a nut provided on the cover for fixing the component.
    Type: Application
    Filed: October 9, 2024
    Publication date: May 8, 2025
    Inventors: Sota Kawarasaki, Masaaki Iwabe, Masaki Ota, Satoshi Nakahara, Noriyuki Maki
  • Publication number: 20250149832
    Abstract: There is provided a shielded connector including: a housing having a fitting portion to be fitted to a counterpart connector; a cover assembled to an opening opposite to the fitting portion; an annular seal member sealing a gap between the opening and the cover; a shield shell externally fitted to the housing to cover the opening; ribs disposed along an outer peripheral surface of the housing corresponding to an outside of the opening and extending along an assembling direction of the shield shell; and a holding surface projecting from an inner surface of the shield shell such that only an end of the ribs in an open end of the opening comes into contact with the holding surface to prevent the opening from being deformed in an expansion direction when the shield shell is assembled to the housing.
    Type: Application
    Filed: October 10, 2024
    Publication date: May 8, 2025
    Inventors: Masaaki Iwabe, Ryo Yamashita, Masaki Ota
  • Publication number: 20250073573
    Abstract: A controller has: a case; a manipulation unit, in a plate-like shape, disposed in the case so as to be exposed from the case; and a haptic sensor that detects a rotation manipulation for the manipulation unit. The haptic sensor has a distortion generating body fixed to the center of the manipulation unit and also has a distortion sensor disposed on the distortion generating body. The manipulation unit has non-slip portions, which are paired in the left-right direction, in the vicinity of both ends of the upper surface of the manipulation unit in the left-right direction.
    Type: Application
    Filed: July 23, 2024
    Publication date: March 6, 2025
    Inventors: Tetsu NUMATA, Tetsuo MURANAKA, Masaki OTA, Kunio HOSONO, Yasuji HAGIWARA
  • Publication number: 20250073572
    Abstract: A haptic sensor has: a distortion generating body; first distortion sensors for detecting a rotation manipulation; and second distortion sensors for detecting a tilt manipulation. The distortion generating body has: a base in a plate-like shape; a first column disposed on one surface of the base; and a plurality of second columns disposed on a single circumference, the center of which is the first column, on another surface of the base. On the base of the distortion generating body, the first distortion sensors are placed on a circumference shared between the first distortion sensors and the plurality of second columns. On the base of the distortion generating body, the second distortion sensors are placed around the first column.
    Type: Application
    Filed: July 23, 2024
    Publication date: March 6, 2025
    Inventors: Tetsu NUMATA, Tetsuo MURANAKA, Kunio HOSONO, Masaki OTA, Yasuji HAGIWARA
  • Publication number: 20240274381
    Abstract: A multidirectional input device includes a housing made of an insulating material; an operation lever supported by the housing in a tiltable manner; a tilt detection sensor configured to detect a tilt of the operation lever; and an electrostatic detection circuit configured to detect an electrostatic capacitance formed between an electrostatic detection electrode and a surrounding object, wherein the housing includes a dome-shaped dome portion and an opening provided at a top of the dome portion, the operation lever is inserted through the opening, and the electrostatic detection electrode has an annular portion disposed to surround the opening.
    Type: Application
    Filed: April 22, 2024
    Publication date: August 15, 2024
    Inventors: Masaki OTA, Tetsu NUMATA, Masatoshi ONO, Masashi ITO
  • Publication number: 20240175203
    Abstract: A material storage apparatus includes: a material storage portion configured to store scraps of paper and including a material container and a lid, the material container having a material inlet enabling the scraps of paper to be input into the material container, the lid being configured to open and close the material inlet; a humidification portion including a first blower and configured to supply humidified air into the material container; and an air circulation portion including a second blower and configured to suck air in the material container, and when the lid is open, the material container has a negative pressure.
    Type: Application
    Filed: November 27, 2023
    Publication date: May 30, 2024
    Inventors: Masaki OTA, Koji MOTOHASHI
  • Publication number: 20240043613
    Abstract: A method for producing a maleimide polyethylene glycol derivative, may including a reaction step of heating a maleimide polyethylene glycol derivative having a protective group, in a solvent in the presence of silica gel to cause deprotection. A maleimide polyethylene glycol derivative can be produced at a high maleimidization rate while restraining deterioration of a maleimide group on deprotecting the maleimide polyethylene glycol derivative having a protective group.
    Type: Application
    Filed: December 8, 2021
    Publication date: February 8, 2024
    Applicant: NOF CORPORATION
    Inventors: Daiki OZONE, Shota MORI, Masaki OTA
  • Publication number: 20230365750
    Abstract: The present invention provides a method for producing a maleimide polyethylene glycol lipid, and the method includes a reaction step of deprotecting a maleimide polyethylene glycol lipid having a protective group by heating the maleimide polyethylene glycol lipid having a protective group in a solvent in the presence of silica gel. According to the present invention, a production method of preventing deterioration of a maleimide group and improving a maleimidation rate can be provided.
    Type: Application
    Filed: September 17, 2021
    Publication date: November 16, 2023
    Applicant: NOF CORPORATION
    Inventors: Shota MORI, Masaki OTA
  • Patent number: 11687195
    Abstract: A contactless input device includes a plurality of sensor electrodes and a determination unit. The plurality of sensor electrodes are configured to, when a hand performs an operational input over an operating surface of an operating part in a contactless manner, detect individual capacitances correlated to proximity of the hand to the operating surface. The determination unit is configured to calculate sharpnesses of the hand at a plurality of different locations in plan view based on the respective capacitances detected by the plurality of sensor electrodes and determine a location of the operational input based on the sharpnesses.
    Type: Grant
    Filed: August 12, 2022
    Date of Patent: June 27, 2023
    Assignee: Alps Alpine Co., Ltd.
    Inventors: Keitaro Uchida, Masaki Ota, Masahiro Takata
  • Publication number: 20230063584
    Abstract: A contactless input device includes a plurality of sensor electrodes and a determination unit. The plurality of sensor electrodes are configured to, when a hand performs an operational input over an operating surface of an operating part in a contactless manner, detect individual capacitances correlated to proximity of the hand to the operating surface. The determination unit is configured to calculate sharpnesses of the hand at a plurality of different locations in plan view based on the respective capacitances detected by the plurality of sensor electrodes and determine a location of the operational input based on the sharpnesses.
    Type: Application
    Filed: August 12, 2022
    Publication date: March 2, 2023
    Inventors: Keitaro UCHIDA, Masaki OTA, Masahiro TAKATA
  • Patent number: 11424086
    Abstract: An operation device includes a housing, an operation member, and a detector. The housing includes an electrically conductive portion on a surface thereof. The operation member is supported by the housing such that the operation member is movable in response to an operation by an operation body, and is configured to be capacitively coupled to the operation body and to the electrically conductive portion. The detector is configured to detect whether the operation body is in proximity to the operation member based on a change in capacitance at the electrically conductive portion.
    Type: Grant
    Filed: February 2, 2021
    Date of Patent: August 23, 2022
    Assignee: ALPS ALPINE CO., LTD.
    Inventors: Yasuji Hagiwara, Daisuke Takai, Takashi Sasaki, Takeshi Masaki, Toshiki Nakamura, Masaki Ota, Hiroshi Shigetaka, Masahiro Takata
  • Publication number: 20210159027
    Abstract: An operation device includes a housing, an operation member, and a detector. The housing includes an electrically conductive portion on a surface thereof. The operation member is supported by the housing such that the operation member is movable in response to an operation by an operation body, and is configured to be capacitively coupled to the operation body and to the electrically conductive portion. The detector is configured to detect whether the operation body is in proximity to the operation member based on a change in capacitance at the electrically conductive portion.
    Type: Application
    Filed: February 2, 2021
    Publication date: May 27, 2021
    Inventors: Yasuji HAGIWARA, Daisuke TAKAI, Takashi SASAKI, Takeshi MASAKI, Toshiki NAKAMURA, Masaki OTA, Hiroshi SHIGETAKA, Masahiro TAKATA
  • Patent number: 10927260
    Abstract: Provided are a coloring composition with which a light absorption anisotropic film having excellent durability can be formed, a light absorption anisotropic film, a laminate, and an image display device. A coloring composition according to the invention contains a dichroic dye compound having a structure represented by Formula (1D) and a liquid crystalline compound.
    Type: Grant
    Filed: August 24, 2018
    Date of Patent: February 23, 2021
    Assignee: FUJIFILM Corporation
    Inventors: Wataru Hoshino, Masaki Ota, Masatoshi Mizumura, Takashi Katou, Yoshiaki Takada, Yoji Ito, Daisuke Kashiwagi, Yuya Hamaguchi
  • Publication number: 20210017202
    Abstract: The invention aims to provide a constituent component of a liposome for a DDS carrier that does not show a membrane fusion promoting effect on viruses. In particular, the invention provides a sphingomyelin-derived lipid represented by the formula (1): wherein R1 is an alkyl group having 13-17 carbon atoms, and R2 is an acyl group having 12-24 carbon atoms, and a production method thereof.
    Type: Application
    Filed: March 26, 2019
    Publication date: January 21, 2021
    Applicant: NOF CORPORATION
    Inventor: Masaki OTA
  • Patent number: 10626217
    Abstract: A lipid derivative in which a hydrophilic polymer is bound through a cyclic benzylidene acetal linker, and which can accurately control a hydrolysis rate in the weakly acidic environment of a living body to detach the hydrophilic polymer from a lipid membrane structure. The lipid derivative is represented by formula (1): wherein, R1 and R6 are each independently a hydrogen atom or a hydrocarbon group; R2, R3, R4 and R5 are each independently an electron-withdrawing or electron-donating substituent or a hydrogen atom; R7 is a hydrocarbon group having from 8 to 24 carbon atoms, an acyl group having from 8 to 24 carbon atoms, a cholesterol derivative, a glycerolipid, a phospholipid or a sphingolipid; P is a hydrophilic polymer; s is 1 or 2, t is 0 or 1, and s+t is 1 or 2; and Z1 and Z2 are each independently a selected divalent spacer.
    Type: Grant
    Filed: September 29, 2016
    Date of Patent: April 21, 2020
    Assignee: NOF CORPORATION
    Inventors: Masaki Ota, Takuma Tsubusaki, Yuji Yamamoto
  • Patent number: 10322577
    Abstract: A printing apparatus and a printing method which can suppress lowering of reading accuracy of a two-dimensional code caused by shift of a printing position of an image are provided. For that purpose, in printing of the two-dimensional code by a plurality of times of scanning, in a case where a boundary between image regions crosses a square-shaped minimum information element (cell) of the two-dimensional code, a printing position of the two-dimensional code is moved so that the boundary between the image regions comes to an end portion of the cell.
    Type: Grant
    Filed: August 30, 2017
    Date of Patent: June 18, 2019
    Assignee: CANON FINETECH NISCA INC.
    Inventors: Kenro Yamaguchi, Masaki Ota
  • Publication number: 20180362768
    Abstract: Provided are a coloring composition with which a light absorption anisotropic film having excellent durability can be formed, a light absorption anisotropic film, a laminate, and an image display device. A coloring composition according to the invention contains a dichroic dye compound having a structure represented by Formula (1D) and a liquid crystalline compound.
    Type: Application
    Filed: August 24, 2018
    Publication date: December 20, 2018
    Applicant: FUJIFILM Corporation
    Inventors: Wataru HOSHINO, Masaki OTA, Masatoshi MIZUMURA, Takashi KATOU, Yoshiaki TAKADA, Yoji ITO, Daisuke KASHIWAGI, Yuya HAMAGUCHI
  • Publication number: 20180312633
    Abstract: A lipid derivative in which a hydrophilic polymer is bound through a cyclic benzylidene acetal linker, and which can accurately control a hydrolysis rate in the weakly acidic environment of a living body to detach the hydrophilic polymer from a lipid membrane structure. The lipid derivative is represented by formula (1): wherein, R1 and R6 are each independently a hydrogen atom or a hydrocarbon group; R2, R3, R4 and R5 are each independently an electron-withdrawing or electron-donating substituent or a hydrogen atom; R7 is a hydrocarbon group having from 8 to 24 carbon atoms, an acyl group having from 8 to 24 carbon atoms, a cholesterol derivative, a glycerolipid, a phospholipid or a sphingolipid; P is a hydrophilic polymer; s is 1 or 2, t is 0 or 1, and s+t is 1 or 2; and Z1 and Z2 are each independently a selected divalent spacer.
    Type: Application
    Filed: September 29, 2016
    Publication date: November 1, 2018
    Applicant: NOF CORPORATION
    Inventors: Masaki OTA, Takuma TSUBUSAKI, Yuji YAMAMOTO
  • Patent number: 10092655
    Abstract: The invention provides a cationic lipid capable of achieving higher intracellular delivery efficiency than conventional cationic lipids, when used as a lipid membrane structure which is a carrier for delivering functional nucleic acid. The cationic lipid is represented by the formula (1): wherein each symbol is as defined herein.
    Type: Grant
    Filed: August 7, 2015
    Date of Patent: October 9, 2018
    Assignees: NOF CORPORATION, NATIONAL UNIVERSITY CORPORATION HOKKAIDO UNIVERSITY
    Inventors: Shota Sasaki, Masaki Ota, Kazuhiro Kubo, Hideyoshi Harashima, Hidetaka Akita, Hiroto Hatakeyama, Yuki Noguchi, Kota Tange, Yuta Nakai, Nayuta Shimizu