Yoshitada Katagiri

Person

Tokyo, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Laser oscillator, optical communication method and system
- Patent number 7,139,491
- Issue date Nov 21, 2006
- Nippon Telegraph and Telephone Corporation
- Yoshitada Katagiri
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Laser oscillator, optical communication method and system
- Patent number 7,050,723
- Issue date May 23, 2006
- Nippon Telegraph and Telephone Corporation
- Yoshitada Katagiri
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method and system for controlling optical wavelength based on optic...
- Patent number 7,023,887
- Issue date Apr 4, 2006
- Nippon Telegraph and Telephone Corp.
- Wataru Imajuku
- G01 - MEASURING TESTING
Information Patent Grant
Method and apparatus for controlling optical wavelength based on op...
- Patent number 6,909,732
- Issue date Jun 21, 2005
- Nippon Telegraph and Telephone Corporation
- Wataru Imajuku
- G01 - MEASURING TESTING
Information Patent Grant
Method and apparatus for measuring temperature of movable object
- Patent number 6,695,471
- Issue date Feb 24, 2004
- Nippon Telegraph and Telephone Corporation
- Etsu Hashimoto
- G01 - MEASURING TESTING
Information Patent Grant
Method for manufacturing optical filter
- Patent number 6,475,557
- Issue date Nov 5, 2002
- Nippon Telegraph and Telephone Corporation
- Kunihiko Mori
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Method and apparatus for controlling optical wavelength based on op...
- Patent number 6,370,169
- Issue date Apr 9, 2002
- Nippon Telegraph and Telephone Corporation
- Wataru Imajuku
- G01 - MEASURING TESTING
Information Patent Grant
Light generation method and light source
- Patent number 6,359,724
- Issue date Mar 19, 2002
- Nippon Telegraph and Telephone Corporation
- Yoshitada Katagiri
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Disk shaped tunable optical filter
- Patent number 6,157,025
- Issue date Dec 5, 2000
- Nippon Telegraph & Telephone Corporation
- Yoshitada Katagiri
- G02 - OPTICS
Information Patent Grant
Magneto-optic information storage system utilizing a TE/TM mode con...
- Patent number 5,504,722
- Issue date Apr 2, 1996
- Nippon Telegraph & Telephone Corporation
- Hidenao Tanaka
- G11 - INFORMATION STORAGE
Information Patent Grant
Polarization mode switching semiconductor laser apparatus
- Patent number 5,497,390
- Issue date Mar 5, 1996
- Nippon Telegraph and Telephone Corporation
- Hidenao Tanaka
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Micro optical head with an optically switched laser diode
- Patent number 4,860,276
- Issue date Aug 22, 1989
- Nippon Telegraph & Telephone Corporation
- Hiroo Ukita
- G11 - INFORMATION STORAGE

Patents Applicationslast 30 patents

Information Patent Application
Laser oscillator, optical communication method and system
- Publication number 20060193636
- Publication date Aug 31, 2006
- Nippon Telegraph and Telephone Corporation
- Yoshitada Katagiri
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Method and system for controlling optical wavelength based on optic...
- Publication number 20050157969
- Publication date Jul 21, 2005
- Wataru Imajuku
- G01 - MEASURING TESTING
Information Patent Application
Laser oscillator, optical communication method and system
- Publication number 20040196876
- Publication date Oct 7, 2004
- Nippon Telegraph and Telephone Corporation
- Yoshitada Katagiri
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Method and apparatus for measuring temperature of movable object
- Publication number 20030007545
- Publication date Jan 9, 2003
- Etsu Hashimoto
- G01 - MEASURING TESTING
Information Patent Application
Method and apparatus for controlling optical wavelength based on op...
- Publication number 20020088920
- Publication date Jul 11, 2002
- Wataru Imajuku
- G01 - MEASURING TESTING

Yoshitada Katagiri

Person

Patents Grantslast 30 patents

Laser oscillator, optical communication method and system

Laser oscillator, optical communication method and system

Method and system for controlling optical wavelength based on optic...

Method and apparatus for controlling optical wavelength based on op...

Method and apparatus for measuring temperature of movable object

Method for manufacturing optical filter

Method and apparatus for controlling optical wavelength based on op...

Light generation method and light source

Disk shaped tunable optical filter

Magneto-optic information storage system utilizing a TE/TM mode con...

Polarization mode switching semiconductor laser apparatus

Micro optical head with an optically switched laser diode

Patents Applicationslast 30 patents

Laser oscillator, optical communication method and system

Method and system for controlling optical wavelength based on optic...

Laser oscillator, optical communication method and system

Method and apparatus for measuring temperature of movable object

Method and apparatus for controlling optical wavelength based on op...