Takashi Ushikubo

Follow

Person

Tokyo, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Projection display apparatus and image forming apparatus with effic...
- Patent number 7,901,088
- Issue date Mar 8, 2011
- Oki Data Corporation
- Yukio Nakamura
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical code division multiplexing transmission and reception metho...
- Patent number 7,680,415
- Issue date Mar 16, 2010
- Oki Electric Industry Co., Ltd.
- Naoki Minato
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Multi-channel optical coupling module
- Patent number 6,340,251
- Issue date Jan 22, 2002
- Oki Electric Industry Co., Ltd.
- Yoshiki Shibuya
- G02 - OPTICS
Information Patent Grant
Method of arranging optical fibers and optical fibers arranging module
- Patent number 6,321,019
- Issue date Nov 20, 2001
- Oki Electric Industry Co., Ltd.
- Yoshiki Shibuya
- G02 - OPTICS
Information Patent Grant
Optical wavelength filter device
- Patent number 5,189,714
- Issue date Feb 23, 1993
- Oki Electric Industry Co., Ltd.
- Hideaki Okayama
- G02 - OPTICS
Information Patent Grant
Distributed coupler switch
- Patent number 4,884,858
- Issue date Dec 5, 1989
- Oki Electric Industry Co., Ltd.
- Takashi Ushikubo
- G02 - OPTICS

Patents Applicationslast 30 patents

Information Patent Application
Projection display apparatus and image forming apparatus
- Publication number 20080055555
- Publication date Mar 6, 2008
- Oki Data Corporation
- Yukio Nakamura
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Optical code division multiplexing transmission and reception metho...
- Publication number 20060115272
- Publication date Jun 1, 2006
- Oki Electric Industry Co., Ltd.
- Naoki Minato
- H04 - ELECTRIC COMMUNICATION TECHNIQUE