Ichiro Tonai

Person

Yokohama, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Optical module and optical hub system
- Patent number 7,154,752
- Issue date Dec 26, 2006
- Sumitomo Electric Industries, Ltd.
- Shunsuke Sato
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Optical part, optical module sleeve, optical receiving module, opti...
- Patent number 7,036,998
- Issue date May 2, 2006
- Sumitomo Electric Industries, Ltd.
- Ichiro Tonai
- G02 - OPTICS
Information Patent Grant
Optical connection sleeve, optical module and optical communication...
- Patent number 6,966,705
- Issue date Nov 22, 2005
- Sumitomo Electric Industries, Ltd.
- Shunsuke Sato
- G02 - OPTICS
Information Patent Grant
Optical connection sleeve, optical module and optical communication...
- Patent number 6,893,163
- Issue date May 17, 2005
- Sumitomo Electric Industries, Ltd.
- Shunsuke Sato
- G02 - OPTICS
Information Patent Grant
Optical module
- Patent number 6,354,747
- Issue date Mar 12, 2002
- Sumitomo Electric Industries, Ltd.
- Takeshi Irie
- G02 - OPTICS
Information Patent Grant
Optical module
- Patent number 6,315,465
- Issue date Nov 13, 2001
- Sumitomo Electric Industries, Ltd.
- Toshio Mizue
- G02 - OPTICS
Information Patent Grant
Optical data link
- Patent number 6,234,686
- Issue date May 22, 2001
- Sumitomo Electric Industries, Ltd.
- Ichiro Tonai
- G02 - OPTICS
Information Patent Grant
Light-receiving device
- Patent number 6,114,737
- Issue date Sep 5, 2000
- Sumitomo Electric Industries, Ltd.
- Ichiro Tonai
- G02 - OPTICS
Information Patent Grant
Optical module having structure for defining fixing position of sleeve
- Patent number 5,596,665
- Issue date Jan 21, 1997
- Sumitomo Electric Industries, Ltd.
- Hiromi Kurashima
- G02 - OPTICS
Information Patent Grant
Semiconductor laser device making use of photodiode chip
- Patent number 5,542,018
- Issue date Jul 30, 1996
- Yoshiki Kuhara
- G02 - OPTICS
Information Patent Grant
Connector including opposing lens surfaces, side surfaces, and cont...
- Patent number 5,526,455
- Issue date Jun 11, 1996
- Sumitomo Electric Industries, Ltd.
- Osamu Akita
- G02 - OPTICS
Information Patent Grant
Semiconductor element module
- Patent number 5,452,389
- Issue date Sep 19, 1995
- Sumitomo Electric Industries, Ltd.
- Ichiro Tonai
- G02 - OPTICS
Information Patent Grant
Semiconductor light detection device having secondary region to cap...
- Patent number 5,420,418
- Issue date May 30, 1995
- Sumitomo Electric Industries, Ltd.
- Yasushi Fujimura
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Semiconductor light detecting device making use of a photodiode chip
- Patent number 5,412,229
- Issue date May 2, 1995
- Sumitomo Electric Industries, Ltd.
- Yoshiki Kuhara
- G02 - OPTICS
Information Patent Grant
Light receiving device
- Patent number 5,391,910
- Issue date Feb 21, 1995
- Sumitomo Electric Industries, Ltd.
- Yasushi Fujimura
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Photo-sensing device
- Patent number 5,365,101
- Issue date Nov 15, 1994
- Sumitomo Electric Industries, Ltd.
- Ichiro Tonai
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Semiconductor photodetector with dielectric shielding
- Patent number 5,345,075
- Issue date Sep 6, 1994
- Sumitomo Electric Industries, Ltd.
- Ichiro Tonai
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Semiconductor light source
- Patent number 5,345,074
- Issue date Sep 6, 1994
- Sumitomo Electric Industries, Ltd.
- Ichiro Tonai
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Photo-sensing device
- Patent number 5,304,824
- Issue date Apr 19, 1994
- Sumitomo Electric Industries, Ltd.
- Ichiro Tonai
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Semiconductor structure for photodetector
- Patent number 5,214,276
- Issue date May 25, 1993
- Sumitomo Electric Indsutries, Ltd.
- Takeshi Himoto
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
InGaAs/InP type pin photodiodes
- Patent number 5,053,837
- Issue date Oct 1, 1991
- Sumitomo Electric Industries, Ltd.
- Ichiro Tonai
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Electrode structure for III-V compound semiconductor element and me...
- Patent number 5,047,832
- Issue date Sep 10, 1991
- Sumitomo Electric Industries, Ltd.
- Ichiro Tonai
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
Optical module and optical hub system
- Publication number 20040190264
- Publication date Sep 30, 2004
- Shunsuke Sato
- G02 - OPTICS
Information Patent Application
Optical connection sleeve, optical module and optical communication...
- Publication number 20030169978
- Publication date Sep 11, 2003
- Shunsuke Sato
- G02 - OPTICS
Information Patent Application
Optical connection sleeve, optical module and optical communication...
- Publication number 20030128937
- Publication date Jul 10, 2003
- Shunsuke Sato
- G02 - OPTICS
Information Patent Application
Optical data link
- Publication number 20030091349
- Publication date May 15, 2003
- Shunsuke Sato
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Optical part, optical module sleeve, optical receiving module, opti...
- Publication number 20030091304
- Publication date May 15, 2003
- Ichiro Tonai
- G02 - OPTICS

Ichiro Tonai

Person

Patents Grantslast 30 patents

Optical module and optical hub system

Optical part, optical module sleeve, optical receiving module, opti...

Optical connection sleeve, optical module and optical communication...

Optical connection sleeve, optical module and optical communication...

Optical module

Optical module

Optical data link

Light-receiving device

Optical module having structure for defining fixing position of sleeve

Semiconductor laser device making use of photodiode chip

Connector including opposing lens surfaces, side surfaces, and cont...

Semiconductor element module

Semiconductor light detection device having secondary region to cap...

Semiconductor light detecting device making use of a photodiode chip

Light receiving device

Photo-sensing device

Semiconductor photodetector with dielectric shielding

Semiconductor light source

Photo-sensing device

Semiconductor structure for photodetector

InGaAs/InP type pin photodiodes

Electrode structure for III-V compound semiconductor element and me...

Patents Applicationslast 30 patents

Optical module and optical hub system

Optical connection sleeve, optical module and optical communication...

Optical connection sleeve, optical module and optical communication...

Optical data link

Optical part, optical module sleeve, optical receiving module, opti...