Patents by Inventor Kunihiko Honda

Kunihiko Honda 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: 11971633
    Abstract: An electrode structure includes: a plurality of pixel electrodes arranged separately from each other; and a plurality of dielectric layers laminated in a first direction with respect to the plurality of pixel electrodes, in which the plurality of dielectric layers includes: a first dielectric layer that spreads over the plurality of pixel electrodes in a direction intersecting with the first direction; and a second dielectric layer that includes dielectric material having a refractive index higher than that of the first dielectric layer, sandwiches the first dielectric layer together with the plurality of pixel electrodes, and has a slit at a position overlapping space between pixel electrodes adjacent when viewed from the first direction.
    Type: Grant
    Filed: May 15, 2020
    Date of Patent: April 30, 2024
    Assignees: SONY SEMICONDUCTOR SOLUTIONS CORPORATION, SONY GROUP CORPORATION
    Inventors: Takashi Sakairi, Tomoaki Honda, Tsuyoshi Okazaki, Keiichi Maeda, Chiho Araki, Katsunori Dai, Shunsuke Narui, Kunihiko Hikichi, Kouta Fukumoto, Toshiaki Okada, Takuma Matsuno, Yuu Kawaguchi, Yuuji Adachi, Koichi Amari, Hideki Kawaguchi, Seiya Haraguchi, Takayoshi Masaki, Takuya Fujino, Tadayuki Dofuku, Yosuke Takita, Kazuhiro Tamura, Atsushi Tanaka
  • Patent number: 5395696
    Abstract: A magnetic recording medium having a magnetic recording layer on at least one surface of a non-magnetic support, wherein the magnetic recording layer has thereon a lubricant layer containing at least one fluoroalkyl sulfo compound having an ether or ester linkage, which is represented by the following formula (1). The magnetic recording medium is free from corrosion of the magnetic recording layer and has a low coefficient of friction and excellent running durability and shelf stability. The lubricant layer is particularly suitable for a magnetic recording medium having a metal thin film with or without an inorganic protective film as a magnetic recording layer.(Rf--A--R--SO.sub.3).sub.k X Formula (1)wherein Rf represents a fluoroalkyl group or a perfluoroalkyl group; A represents ##STR1## R represents an alkylene group; k represents an integer of 1 or 2; and X represents --H, --M, --MH (wherein M is an alkali metal or an alkali earth metal), or any one of primary to quaternary ammoniums.
    Type: Grant
    Filed: April 9, 1993
    Date of Patent: March 7, 1995
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Toshio Ishida, Hideomi Watanabe, Tsutomu Okita, Kunihiko Honda, Kazuyuki Usuki
  • Patent number: 5064687
    Abstract: A method for making a magnetic recording medium comprises the steps of mixing ferromagnetic grains and a surface treating agent, grinding the resulting mixture, and thus obtaining a ground mixture. A binder and a solvent are added to the ground mixture, which results from the mixing and grinding process, the resulting mixture is kneaded and diluted, and a kneaded and diluted mixture is thus obtained. An additive and a solvent are then added to the kneaded and diluted mixture, which results from the kneading and diluting process, a dispersion process is carried out on the resulting mixture, and a dispersion mixture is thereby obtained. Thereafter the dispersion mixture, which results from the dispersion process, is applied to a non-magnetic substrate.
    Type: Grant
    Filed: March 13, 1991
    Date of Patent: November 12, 1991
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Akihiro Matsufuji, Kiyomi Ejiri, Mikio Ohno, Masatoshi Kiyama, Kunihiko Honda
  • Patent number: 4946534
    Abstract: A process for the preparation of a magnetic recording disk comprises the steps of providing a magnetic recording layer on a surface of a nonmagnetic support, punching the nonmagnetic support together with the magnetic recording layer into a disk having a circular hole in its central portion, and fitting mechanical members including a center core made of a synthetic resin into the hole of the support. The nonmagnetic support having the magnetic recording layer and at least the center core of the mechanical members are subjected to heat treatment independently prior to fitting the mechanical members including the center core into the hole of the support.
    Type: Grant
    Filed: April 20, 1988
    Date of Patent: August 7, 1990
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Kunihiko Honda, Tadashi Ishiguro, Masaaki Fujiyama
  • Patent number: 4791021
    Abstract: A magnetic recording medium is described, having improved carrier noise ratio and weather resistance, by controlling the content and the crystal size of iron nitride which contains iron oxide or .epsilon.-Fe.sub.x N (2<x.ltoreq.3).
    Type: Grant
    Filed: October 13, 1987
    Date of Patent: December 13, 1988
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Kunihiko Honda, Toshihiko Miura, Hiroaki Araki
  • Patent number: 4661421
    Abstract: A method is described for preparing a magnetic recording medium by vapor-depositing a magnetic metal thin film on a polyester film, which comprises winding up a polyester film while subjecting the polyester film to a tension of from 0.1 to 2.0 kg/mm.sup.2, heating the resulting polyester film roll at 60.degree. C. to 80.degree. C. for from 10 to 100 hours, and vapor-depositing a magnetic thin film onto the polyester film while subjecting the polyester film to a tension of 0.5 kg/mm.sup.2 or more.
    Type: Grant
    Filed: September 11, 1986
    Date of Patent: April 28, 1987
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Tadashi Ishikuro, Kunihiko Honda, Masataka Ohta, Ryuji Shirahata