Keiji Watanabe

Person

Kamakura, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Planar display apparatus having exposed insulated substrate portion
- Patent number 5,587,627
- Issue date Dec 24, 1996
- Mitsubishi Denki Kabushiki Kaisha
- Masato Saito
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Planar display apparatus
- Patent number 5,495,146
- Issue date Feb 27, 1996
- Mitsubishi Denki Kabushiki Kaisha
- Masato Saito
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Flat display apparatus with supplemental biasing
- Patent number 5,436,530
- Issue date Jul 25, 1995
- Mitsubishi Denki Kabushiki Kaisha
- Ryo Suzuki
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Cathode in a cathode ray tube
- Patent number 5,122,707
- Issue date Jun 16, 1992
- Mitsubishi Denki Kabushiki Kaisha
- Hisao Nakanishi
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Electron tube cathode
- Patent number 5,118,984
- Issue date Jun 2, 1992
- Mitsubishi Denki Kabushiki Kaisha
- Masato Saito
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Electrode for discharge light source
- Patent number 5,073,743
- Issue date Dec 17, 1991
- Mitsubishi Denki Kabushiki Kaisha
- Toshiro Kajiwara
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Cathode for electron tube and manufacturing method thereof
- Patent number 5,015,497
- Issue date May 14, 1991
- Mitsubishi Denki Kabushiki Kaisha
- Kinjiro Sano
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Cathode for electron tube
- Patent number 4,924,137
- Issue date May 8, 1990
- Mitsubishi Denki Kabushiki Kaisha
- Keiji Watanabe
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Hot cathode in wire form
- Patent number 4,897,574
- Issue date Jan 30, 1990
- Mitsubishi Denki Kabushiki Kaisha
- Masato Saito
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Cathode for electron tube and manufacturing method thereof
- Patent number 4,864,187
- Issue date Sep 5, 1989
- Mitsubishi Denki Kabushiki Kaisha
- Kinjiro Sano
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Cathode for electron tube
- Patent number 4,797,593
- Issue date Jan 10, 1989
- Mitsubishi Denki Kabushiki Kaisha
- Masato Saito
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Metal vapor discharge lamp
- Patent number 4,629,929
- Issue date Dec 16, 1986
- Mitsubishi Denki Kabushiki Kaisha
- Masato Saito
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Metal vapor discharge lamp with heat insulator and starting aid
- Patent number 4,418,300
- Issue date Nov 29, 1983
- Mitsubishi Denki Kabushiki Kaisha
- Katsuya Otani
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Discharge lamp and lighting equipment
- Patent number 4,377,772
- Issue date Mar 22, 1983
- Mitsubishi Denki Kabushiki Kaisha
- Michihiro Tsuchihashi
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Metal vapor discharge lamp
- Patent number 4,345,186
- Issue date Aug 17, 1982
- Mitsubishi Denki Kabushiki Kaisha
- Masato Saito
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Electrode for discharge lamp
- Patent number 4,319,158
- Issue date Mar 9, 1982
- Mitsubishi Denki Kabushiki Kaisha
- Keiji Watanabe
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Electrode of discharge lamp
- Patent number 4,136,227
- Issue date Jan 23, 1979
- Mitsubishi Denki Kabushiki Kaisha
- Masato Saito
- H01 - BASIC ELECTRIC ELEMENTS

Keiji Watanabe

Person

Patents Grantslast 30 patents

Planar display apparatus having exposed insulated substrate portion

Planar display apparatus

Flat display apparatus with supplemental biasing

Cathode in a cathode ray tube

Electron tube cathode

Electrode for discharge light source

Cathode for electron tube and manufacturing method thereof

Cathode for electron tube

Hot cathode in wire form

Cathode for electron tube and manufacturing method thereof

Cathode for electron tube

Metal vapor discharge lamp

Metal vapor discharge lamp with heat insulator and starting aid

Discharge lamp and lighting equipment

Metal vapor discharge lamp

Electrode for discharge lamp

Electrode of discharge lamp