Masayuki Togawa

Person

Tokyo, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Optical path switching device
- Patent number 7,561,799
- Issue date Jul 14, 2009
- Nabtesco Corporation
- Masayuki Togawa
- G02 - OPTICS
Information Patent Grant
Optical device
- Patent number 7,062,119
- Issue date Jun 13, 2006
- Teijin Seiki Co., LTD
- Masayuki Togawa
- G02 - OPTICS
Information Patent Grant
Optical path switching apparatus
- Patent number 6,873,448
- Issue date Mar 29, 2005
- Teijin Seiki Co., LTD
- Masayuki Togawa
- G02 - OPTICS
Information Patent Grant
Optical path switching apparatus
- Patent number 6,819,827
- Issue date Nov 16, 2004
- Teijin Seiki Co., LTD
- Morio Kobayashi
- G02 - OPTICS
Information Patent Grant
Method of using a substrate with magnetic substance of a magnetic s...
- Patent number 6,153,321
- Issue date Nov 28, 2000
- Teijun Seiki Co.
- Kiyoshi Toyama
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Magneto-optically modulating system for monitoring relative relatio...
- Patent number 6,072,174
- Issue date Jun 6, 2000
- Teijin Seiki Co., Ltd.
- Masayuki Togawa
- G02 - OPTICS
Information Patent Grant
Method of manufacturing magnetic patterns
- Patent number 5,580,639
- Issue date Dec 3, 1996
- Teijin Seiki Co., Ltd.
- Masayuki Togawa
- G01 - MEASURING TESTING
Information Patent Grant
Method of manufacturing a medium having a magnetic pattern
- Patent number 5,527,663
- Issue date Jun 18, 1996
- Teijin Seiki Co., Ltd.
- Masayuki Togawa
- G01 - MEASURING TESTING
Information Patent Grant
Method of manufacturing article having magnetic patterns
- Patent number 5,445,707
- Issue date Aug 29, 1995
- Teijin Seiko Co., Ltd.
- Kiyoshi Toyama
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Magneto-optically modulating system
- Patent number 5,434,934
- Issue date Jul 18, 1995
- Teijin Seiki Co., Ltd.
- Masayuki Togawa
- G02 - OPTICS
Information Patent Grant
Method of manufacturing a medium having a magnetic pattern
- Patent number 5,429,911
- Issue date Jul 4, 1995
- Teijin Seiki Co., Ltd.
- Masayuki Togawa
- G01 - MEASURING TESTING
Information Patent Grant
Method of manufacturing article having magnetic patterns
- Patent number 5,427,675
- Issue date Jun 27, 1995
- Teijin Seiki Co., Ltd.
- Kiyoshi Toyama
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Magnetic medium comprising a substrate having pits and grooves of s...
- Patent number 5,350,618
- Issue date Sep 27, 1994
- Teijin Seiki Co., Ltd.
- Masayuki Togawa
- G01 - MEASURING TESTING
Information Patent Grant
Magnetic medium and method of manufacturing the same
- Patent number 5,336,586
- Issue date Aug 9, 1994
- Teijin Seiki Co., Ltd.
- Masayuki Togawa
- G01 - MEASURING TESTING
Information Patent Grant
Magneto-optic magnetic-field measuring apparatus for measuring a ma...
- Patent number 5,281,912
- Issue date Jan 25, 1994
- Teijin Seiki Co., Ltd.
- Masayuki Togawa
- G01 - MEASURING TESTING

Patents Applicationslast 30 patents

Information Patent Application
OPTICAL PATH SWITCHING DEVICE
- Publication number 20100074618
- Publication date Mar 25, 2010
- NABTESCO CORPORATION
- Masayuki Togawa
- G02 - OPTICS
Information Patent Application
ACTUATOR UNIT
- Publication number 20090051228
- Publication date Feb 26, 2009
- NABTESCO CORPORATION
- Masahiro Kanbara
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Optical path switching device
- Publication number 20050201750
- Publication date Sep 15, 2005
- Nabtesco Corporation
- Masayuki Togawa
- G02 - OPTICS
Information Patent Application
Optical device
- Publication number 20030169973
- Publication date Sep 11, 2003
- TEIJIN SEIKI CO., LTD
- Masayuki Togawa
- G02 - OPTICS
Information Patent Application
Optical path switching apparatus
- Publication number 20030169477
- Publication date Sep 11, 2003
- Teijin Seiki Co., Ltd.
- Masayuki Togawa
- G02 - OPTICS
Information Patent Application
Optical path switching apparatus
- Publication number 20020197003
- Publication date Dec 26, 2002
- Morio Kobayashi
- G02 - OPTICS

Masayuki Togawa

Person

Patents Grantslast 30 patents

Optical path switching device

Optical device

Optical path switching apparatus

Optical path switching apparatus

Method of using a substrate with magnetic substance of a magnetic s...

Magneto-optically modulating system for monitoring relative relatio...

Method of manufacturing magnetic patterns

Method of manufacturing a medium having a magnetic pattern

Method of manufacturing article having magnetic patterns

Magneto-optically modulating system

Method of manufacturing a medium having a magnetic pattern

Method of manufacturing article having magnetic patterns

Magnetic medium comprising a substrate having pits and grooves of s...

Magnetic medium and method of manufacturing the same

Magneto-optic magnetic-field measuring apparatus for measuring a ma...

Patents Applicationslast 30 patents

OPTICAL PATH SWITCHING DEVICE

ACTUATOR UNIT

Optical path switching device

Optical device

Optical path switching apparatus

Optical path switching apparatus