Riichi Katoh

Person

Yokohama, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Quantum effect device
- Patent number 6,333,516
- Issue date Dec 25, 2001
- Kabushiki Kaisha Toshiba
- Riichi Katoh
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Semiconductor memory device having multilayer group IV nanocrystal...
- Patent number 6,060,743
- Issue date May 9, 2000
- Kabushiki Kaisha Toshiba
- Naoharu Sugiyama
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Single-electron semiconductor device
- Patent number 5,844,279
- Issue date Dec 1, 1998
- Kabushiki Kaisha Toshiba
- Tetsufumi Tanamoto
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Quantum effect device
- Patent number 5,710,436
- Issue date Jan 20, 1998
- Kabushiki Kaisha Toshiba
- Tetsufumi Tanamoto
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Electronic device
- Patent number 5,670,790
- Issue date Sep 23, 1997
- Kabushikik Kaisha Toshiba
- Riichi Katoh
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Bipolar transistor with an improved collector structure
- Patent number 5,336,909
- Issue date Aug 9, 1994
- Kabushiki Kaisha Toshiba
- Riichi Katoh
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Heterojunction bipolar transistor
- Patent number 5,177,583
- Issue date Jan 5, 1993
- Kabushiki Kaisha Toshiba
- Takahiko Endo
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Heterojunction bipolar transistor
- Patent number 5,041,882
- Issue date Aug 20, 1991
- Kabushiki Kaisha Toshiba
- Riichi Katoh
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Heterojunction bipolar transistor having double hetero structure
- Patent number 5,010,382
- Issue date Apr 23, 1991
- Kabushiki Kaisha Toshiba
- Riichi Katoh
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Heterojunction bipolar transistor
- Patent number 4,933,732
- Issue date Jun 12, 1990
- Kabushiki Kaisha Toshiba
- Riichi Katoh
- H01 - BASIC ELECTRIC ELEMENTS

Riichi Katoh

Person

Patents Grantslast 30 patents

Quantum effect device

Semiconductor memory device having multilayer group IV nanocrystal...

Single-electron semiconductor device

Quantum effect device

Electronic device

Bipolar transistor with an improved collector structure

Heterojunction bipolar transistor

Heterojunction bipolar transistor

Heterojunction bipolar transistor having double hetero structure

Heterojunction bipolar transistor