Patents by Inventor Yuichi Ohnuma

Yuichi Ohnuma 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).

  • Lead frame, method of making the same and light receiving/emitting device
    Patent number: 7888697
    Abstract: A lead frame includes a base material, a reflection layer formed on a part of the base material, and a characteristic sustaining layer formed at least on the reflection layer to cover the reflection layer for sustaining a characteristic of the reflection layer by isolating the reflection layer from an outside. The reflection layer includes the characteristic to exhibit a predetermined reflectivity to light with a predetermined wavelength, and the characteristic sustaining layer prevents a decrease in the reflectivity of the reflection layer and transmits light reflected by the reflection layer.
    Type: Grant
    Filed: December 2, 2008
    Date of Patent: February 15, 2011
    Assignees: Hitachi Cable Precision Co., Ltd.
    Inventors: Tadashi Kawanobe, Yuichi Ohnuma, Mamoru Mita
  • LEAD FRAME, METHOD OF MAKING THE SAME AND LIGHT RECEIVING/EMITTING DEVICE
    Publication number: 20090141498
    Abstract: A lead frame includes a base material, a reflection layer formed on a part of the base material, and a characteristic sustaining layer formed at least on the reflection layer to cover the reflection layer for sustaining a characteristic of the reflection layer by isolating the reflection layer from an outside. The reflection layer includes the characteristic to exhibit a predetermined reflectivity to light with a predetermined wavelength, and the characteristic sustaining layer prevents a decrease in the reflectivity of the reflection layer and transmits light reflected by the reflection layer.
    Type: Application
    Filed: December 2, 2008
    Publication date: June 4, 2009
    Inventors: Tadashi KAWANOBE, Yuichi Ohnuma, Mamoru Mita