Katsuhiko Kurumada

Person

Tokyo, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Microactuator device and optical switching system using the same
- Patent number 7,092,593
- Issue date Aug 15, 2006
- Nikon Corporation
- Keiichi Akagawa
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Optical device
- Patent number 7,082,251
- Issue date Jul 25, 2006
- NTT Electronics Corporation
- Katsuhiko Kurumada
- G02 - OPTICS
Information Patent Grant
Light-beam switching/adjusting apparatus and manufacturing method t...
- Patent number 7,010,200
- Issue date Mar 7, 2006
- Nikon Corporation
- Keiichi Akagawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Waveguide type optical device and position detecting method
- Patent number 7,006,722
- Issue date Feb 28, 2006
- NTT Electronics Corporation
- Katsuhiko Kurumada
- G01 - MEASURING TESTING
Information Patent Grant
Matrix switch of optical waveguide type and method for manufacturin...
- Patent number 6,954,562
- Issue date Oct 11, 2005
- NTT Electronics Corporation
- Tatsuo Izawa
- G02 - OPTICS
Information Patent Grant
Field effect transistor with combination Schottky-junction gate
- Patent number 4,463,366
- Issue date Jul 31, 1984
- Nippon Telegraph & Telephone Public Corp.
- Yasunobu Ishii
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Field effects semiconductor devices
- Patent number 4,331,967
- Issue date May 25, 1982
- Nippon Telegraph and Telephone Public Corp.
- Katsuhiko Kurumada
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Method of manufacturing a FET device disposed in a compound s/c lay...
- Patent number 4,327,475
- Issue date May 4, 1982
- Nippon Telegraph & Telephone Public Corporation
- Kazuyoshi Asai
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
Microactuator device and optical switching system using the same
- Publication number 20050213878
- Publication date Sep 29, 2005
- Nikon Corporation
- Keiichi Akagawa
- G02 - OPTICS
Information Patent Application
Optical device
- Publication number 20050163428
- Publication date Jul 28, 2005
- NTT ELECTRONICS CORPORATION
- Katsuhiko Kurumada
- G02 - OPTICS
Information Patent Application
WAVEGUIDE TYPE OPTICAL DEVICE AND POSITION DETECTING METHOD,,.
- Publication number 20050163421
- Publication date Jul 28, 2005
- NTT ELECTRONICS CORPORATION
- Katsuhiko Kurumada
- G01 - MEASURING TESTING
Information Patent Application
Light-beam switching/adjusting apparatus and manufacturing method t...
- Publication number 20050018955
- Publication date Jan 27, 2005
- Nikon Corporation
- Keiichi Akagawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Matrix switch of optical waveguide type and method for manufacturin...
- Publication number 20040141679
- Publication date Jul 22, 2004
- NTT ELECTRONICS CORPORATION
- Tatsuo Izawa
- G02 - OPTICS

Katsuhiko Kurumada

Person

Patents Grantslast 30 patents

Microactuator device and optical switching system using the same

Optical device

Light-beam switching/adjusting apparatus and manufacturing method t...

Waveguide type optical device and position detecting method

Matrix switch of optical waveguide type and method for manufacturin...

Field effect transistor with combination Schottky-junction gate

Field effects semiconductor devices

Method of manufacturing a FET device disposed in a compound s/c lay...

Patents Applicationslast 30 patents

Microactuator device and optical switching system using the same

Optical device

WAVEGUIDE TYPE OPTICAL DEVICE AND POSITION DETECTING METHOD,,.

Light-beam switching/adjusting apparatus and manufacturing method t...

Matrix switch of optical waveguide type and method for manufacturin...