Patents by Inventor Hironobu Kiyomoto

Hironobu Kiyomoto 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).

  • Dichroic mirror for separating/synthesizing light with a plurality of wavelengths and optical apparatus and detecting method using the same
    Patent number: 5600487
    Abstract: A dichroic mirror of the present invention having a first portion including an H material layer having a high refractive index, and an M material layer having an intermediate refractive index, the H material layer and the M material layer being laminated repeatedly; and a second portion including an H material layer having a high refractive index, and an L material layer having a low refractive index, the H material layer and the L material layer being laminated repeatedly. An optical apparatus and detecting method of the present invention use the above dichroic mirror.
    Type: Grant
    Filed: April 12, 1995
    Date of Patent: February 4, 1997
    Assignee: Omron Corporation
    Inventors: Hironobu Kiyomoto, Kouichi Ekawa, Hayami Hosokawa
  • Rib optical waveguide and method of manufacturing the same
    Patent number: 5511142
    Abstract: On a substrate (1), a core layer (2) is formed such that the core layer (2) includes a rib section (2a) fabricated to be integral therewith. The core layer (2) and the rib section (2a) are formed with a liquid material to be solidified under an energy irradiation, for example, a UV-setting resin. A clad layer (3) is disposed on the core layer (2). A buffer layer (4) is formed between the core layer (2) and the substrate (1).
    Type: Grant
    Filed: August 6, 1992
    Date of Patent: April 23, 1996
    Assignee: Omron Corporation
    Inventors: Noriyoshi Horie, Hayami Hosokawa, Masami Tada, Tsukasa Yamashita, Tatsuo Ohgaki, Hironobu Kiyomoto
  • Optical read/write head low angle beamsplitter and coplanar detectors
    Patent number: 5444677
    Abstract: An optical read/write head for a magnetic-optic recording and reproducing unit having a beam splitter placed between a collimator lens and an objective lens. The optical path of the beam reflected by a recording disk is bent by the beam splitter and the beam strikes a polarizing beam splitter. The polarizing beam splitter splits the reflected beam into P and S polarized components whose optical axes form n angel of less than 90.degree.. The rays of the P and S polarized components strike respective light detecting elements and which are co-arranged on substantially the same surface.
    Type: Grant
    Filed: March 3, 1993
    Date of Patent: August 22, 1995
    Assignee: Omron Corporation
    Inventors: Hayami Hosokawa, Tatsuo Ohgaki, Kouhei Tomita, Hironobu Kiyomoto, Naru Yasuda, Shinya Otsuki
  • Rib optical waveguide and method of manufacturing the same
    Patent number: 5138687
    Abstract: On a substrate (1), a core layer (2) is formed such that the core layer (2) includes a rib section (2a) fabricated to be integral therewith. The core layer (2) and the rib section (2a) are formed with a liquid material to be solidified under an energy irradiation, for example, a UV-setting resin. A clad layer (3) is disposed on the core layer (2). A buffer layer (4) is formed between the core layer (2) and the substrate (1).
    Type: Grant
    Filed: September 26, 1990
    Date of Patent: August 11, 1992
    Assignee: Omron Corporation
    Inventors: Noriyoshi Horie, Hayami Hosokawa, Masami Tada, Tsukasa Yamashita, Tatsuo Ohgaki, Hironobu Kiyomoto