Yoshifumi Tomita

Person

Mobara, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Liquid crystal display device
- Patent number 6,853,416
- Issue date Feb 8, 2005
- Hitachi, Ltd.
- Tatsuo Hamamoto
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Liquid crystal display device with wide viewing angle characteristi...
- Patent number 6,040,887
- Issue date Mar 21, 2000
- Hitachi, Ltd.
- Shigeru Matsuyama
- G02 - OPTICS
Information Patent Grant
Liquid crystal display device with wide viewing angle characteristi...
- Patent number 5,831,701
- Issue date Nov 3, 1998
- Hitachi, Ltd.
- Shigeru Matsuyama
- G02 - OPTICS
Information Patent Grant
Method for forming and anti-reflection film of a cathode-ray tube,...
- Patent number 5,817,421
- Issue date Oct 6, 1998
- Hitachi, Ltd.
- Tomoji Oishi
- G02 - OPTICS
Information Patent Grant
Ultrafine particle film, process for producing the same, transparen...
- Patent number 5,742,118
- Issue date Apr 21, 1998
- Hitachi, Ltd.
- Yoshishige Endo
- G02 - OPTICS
Information Patent Grant
Color liquid crystal display device composed of color filter with a...
- Patent number 5,689,318
- Issue date Nov 18, 1997
- Hitachi, Ltd.
- Shigeru Matsuyama
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Method for forming an anti-reflection film of a cathode-ray tube, a...
- Patent number 5,449,534
- Issue date Sep 12, 1995
- Hitachi, Ltd.
- Tomoji Oishi
- G02 - OPTICS
Information Patent Grant
System for measuring foreign materials in liquid
- Patent number 4,890,481
- Issue date Jan 2, 1990
- Hitachi, Ltd.
- Masayoshi Ezawa
- G01 - MEASURING TESTING
Information Patent Grant
Process of improving optical contact of patternwise powdery coating...
- Patent number 4,857,429
- Issue date Aug 15, 1989
- Hitachi, Ltd.
- Nobuaki Hayashi
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Fluorescent screens of color picture tubes and manufacturing method...
- Patent number 4,855,200
- Issue date Aug 8, 1989
- Hitachi, Ltd.
- Yoshifumi Tomita
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Face plate for display
- Patent number 4,815,821
- Issue date Mar 28, 1989
- Hitachi, Ltd.
- Saburo Nonogaki
- G02 - OPTICS
Information Patent Grant
System for measuring foreign materials in liquid
- Patent number 4,779,451
- Issue date Oct 25, 1988
- Hitachi, Ltd.
- Masayoshi Ezawa
- G01 - MEASURING TESTING
Information Patent Grant
Cathode-ray tubes and coating materials therefor
- Patent number 4,760,310
- Issue date Jul 26, 1988
- Hitachi Powdered Metals Co., Ltd.
- Sadao Deyama
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Photosensitive composition and pattern forming process using same
- Patent number 4,735,880
- Issue date Apr 5, 1988
- Hitachi, Ltd.
- Hajime Morishita
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Method of manufacturing fluorescent screens of cathode ray tubes
- Patent number RE32498
- Issue date Sep 8, 1987
- Hitachi, Ltd.
- Yoshifumi Tomita
- 430 - Radiation imagery chemistry: process, composition, or product thereof
Information Patent Grant
Method of manufacturing fluorescent screens of color picture tubes
- Patent number 4,681,824
- Issue date Jul 21, 1987
- Hitachi, Ltd.
- Yoshifumi Tomita
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Index type color picture tube
- Patent number 4,625,147
- Issue date Nov 25, 1986
- Hitachi, Ltd.
- Naomitsu Watanabe
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Method of forming phosphor pattern on fluorescent screen for color...
- Patent number 4,612,268
- Issue date Sep 16, 1986
- Hitachi, Ltd.
- Kiyoshi Miura
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Method of manufacturing cathode-ray tube
- Patent number 4,542,038
- Issue date Sep 17, 1985
- Hitachi, Ltd.
- Yoshiyuki Odaka
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Process of forming powder pattern using positive diazonium salt pho...
- Patent number 4,537,851
- Issue date Aug 27, 1985
- Hitachi, Ltd.
- Saburo Nonogaki
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Curved tube type ultra high pressure mercury arc discharge lamp device
- Patent number 4,482,842
- Issue date Nov 13, 1984
- Hitachi, Ltd.
- Takashi Fujimura
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Method of forming cathode-ray tube phosphor screen
- Patent number 4,469,766
- Issue date Sep 4, 1984
- Hitachi, Ltd.
- Masahiro Nishizawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Photosensitive composition
- Patent number 4,425,419
- Issue date Jan 10, 1984
- Hitachi, Ltd.
- Osamu Sasaya
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Pattern forming method and pattern forming apparatus using exposure...
- Patent number 4,396,705
- Issue date Aug 2, 1983
- Hitachi, Ltd.
- Masamoto Akeyama
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Method of manufacturing fluorescent screens of cathode ray tubes
- Patent number 4,391,885
- Issue date Jul 5, 1983
- Hitachi, Ltd.
- Yoshifumi Tomita
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Photoresist composition
- Patent number 4,352,878
- Issue date Oct 5, 1982
- Hitachi, Ltd.
- Kiyoshi Miura
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Method of forming fluorescent screens of color picture tubes
- Patent number 4,331,752
- Issue date May 25, 1982
- Hitachi, Ltd.
- Hiroshi Yokomizo
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Method of forming a fluorescent screen for a color picture tube
- Patent number 4,324,850
- Issue date Apr 13, 1982
- Hitaci, Ltd.
- Yoshifumi Tomita
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Process for forming phosphor screens with treated phosphors
- Patent number 4,276,363
- Issue date Jun 30, 1981
- Hitachi, Ltd.
- Toshikatsu Manabe
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Process for forming patternwise coated powder layer
- Patent number 4,273,842
- Issue date Jun 16, 1981
- Hitachi, Ltd.
- Saburo Nonogaki
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Patents Applicationslast 30 patents

Information Patent Application
Liquid crystal display device
- Publication number 20020011971
- Publication date Jan 31, 2002
- Hitachi, Ltd.
- Tatsuo Hamamoto
- G02 - OPTICS

Yoshifumi Tomita

Person

Patents Grantslast 30 patents

Liquid crystal display device

Liquid crystal display device with wide viewing angle characteristi...

Liquid crystal display device with wide viewing angle characteristi...

Method for forming and anti-reflection film of a cathode-ray tube,...

Ultrafine particle film, process for producing the same, transparen...

Color liquid crystal display device composed of color filter with a...

Method for forming an anti-reflection film of a cathode-ray tube, a...

System for measuring foreign materials in liquid

Process of improving optical contact of patternwise powdery coating...

Fluorescent screens of color picture tubes and manufacturing method...

Face plate for display

System for measuring foreign materials in liquid

Cathode-ray tubes and coating materials therefor

Photosensitive composition and pattern forming process using same

Method of manufacturing fluorescent screens of cathode ray tubes

Method of manufacturing fluorescent screens of color picture tubes

Index type color picture tube

Method of forming phosphor pattern on fluorescent screen for color...

Method of manufacturing cathode-ray tube

Process of forming powder pattern using positive diazonium salt pho...

Curved tube type ultra high pressure mercury arc discharge lamp device

Method of forming cathode-ray tube phosphor screen

Photosensitive composition

Pattern forming method and pattern forming apparatus using exposure...

Method of manufacturing fluorescent screens of cathode ray tubes

Photoresist composition

Method of forming fluorescent screens of color picture tubes

Method of forming a fluorescent screen for a color picture tube

Process for forming phosphor screens with treated phosphors

Process for forming patternwise coated powder layer

Patents Applicationslast 30 patents

Liquid crystal display device