Tadaaki Hirai

Person

Tokyo, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Radiation detector having a plurality of amorphous selenium layers
- Patent number 8,415,662
- Issue date Apr 9, 2013
- Hamamatsu Photonics K.K.
- Koichi Ogusu
- G01 - MEASURING TESTING
Information Patent Grant
Method of and apparatus for picking up and displaying a stereoscopi...
- Patent number 5,818,064
- Issue date Oct 6, 1998
- Hitachi, Ltd.
- Akihiko Kohgami
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Method of and apparatus for picking up and displaying a stereoscopi...
- Patent number 5,583,345
- Issue date Dec 10, 1996
- Hitachi, Ltd.
- Akihiko Kohgami
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Image pickup tube utilizing third electrode and its operating method
- Patent number 5,384,597
- Issue date Jan 24, 1995
- Hitachi, Ltd.
- Kenji Sameshima
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Photoconductive imaging apparatus
- Patent number 5,233,265
- Issue date Aug 3, 1993
- Hitachi, Ltd.
- Yukio Takasaki
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Image pick-up tube and apparatus having the same
- Patent number 5,218,264
- Issue date Jun 8, 1993
- Hitachi, Ltd.
- Tadaaki Hirai
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Photo-sensor and method for operating the same
- Patent number 5,196,702
- Issue date Mar 23, 1993
- Hitachi, Ltd.
- Kazutaka Tsuji
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Amorphous photoelectric conversion device with avalanche
- Patent number 5,101,255
- Issue date Mar 31, 1992
- Sachio Ishioka
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Photoconductive device and method of operating same
- Patent number 5,070,272
- Issue date Dec 3, 1991
- Hitachi, Ltd.
- Takeshi Kikawa
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
X-ray television apparatus
- Patent number 5,023,896
- Issue date Jun 11, 1991
- Hitachi Medical Corporation
- Hisatake Yokouchi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method of fabricating an image pick-up tube and target section used...
- Patent number 5,021,705
- Issue date Jun 4, 1991
- Hitachi Ltd.
- Masanao Yamamoto
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Multi-element type radiation detector
- Patent number 4,982,095
- Issue date Jan 1, 1991
- Hitachi, Ltd.
- Tetsuhiko Takahashi
- G01 - MEASURING TESTING
Information Patent Grant
Electric conversion device
- Patent number 4,980,736
- Issue date Dec 25, 1990
- Hitachi, Ltd.
- Yukio Takasaki
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Photoconductive device and method of operating the same
- Patent number 4,952,839
- Issue date Aug 28, 1990
- Hitachi, Ltd.
- Kenkichi Tanioka
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Target of image pickup tube having an amorphous semiconductor laminate
- Patent number 4,900,975
- Issue date Feb 13, 1990
- Hitachi, Ltd.
- Yasuharu Shimomoto
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Photoconductive device and method of operating the same
- Patent number 4,888,521
- Issue date Dec 19, 1989
- Hitachi Ltd.
- Kenkichi Tanioka
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Light-detecting device
- Patent number 4,884,011
- Issue date Nov 28, 1989
- Hitachi, Ltd. & Nippon Hoso Kasai
- Tatsuo Makishima
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Method of making a photosensor
- Patent number 4,883,562
- Issue date Nov 28, 1989
- Hitachi, Ltd.
- Hirofumi Ogawa
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Target of image pickup tube
- Patent number 4,866,332
- Issue date Sep 12, 1989
- Hitachi, Ltd.
- Yukio Takasaki
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Method and apparatus for driving a plurality of pick-up tubes havin...
- Patent number 4,860,093
- Issue date Aug 22, 1989
- Hitachi, Ltd.
- Takashi Yamashita
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Electronic device having light transmission system
- Patent number 4,829,345
- Issue date May 9, 1989
- Hitachi, Ltd.
- Sachio Ishioka
- G02 - OPTICS
Information Patent Grant
Image pickup tube
- Patent number 4,636,682
- Issue date Jan 13, 1987
- Hitachi, Ltd.
- Chushirou Kusano
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Photosensor having impurity concentration gradient
- Patent number 4,626,885
- Issue date Dec 2, 1986
- Hitachi, Ltd.
- Sachio Ishioka
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Doped photoconductive film including selenium and tellurium
- Patent number 4,617,248
- Issue date Oct 14, 1986
- Nippon Hoso Kyokai
- Kenkichi Tanioka
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Reduced degradation, high resolution image pickup tube
- Patent number 4,564,784
- Issue date Jan 14, 1986
- Hitachi, Ltd.
- Sachio Ishioka
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Photoelectric conversion apparatus
- Patent number 4,556,817
- Issue date Dec 3, 1985
- Hitachi, Ltd.
- Chushirou Kusano
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Photoelectric device
- Patent number 4,556,816
- Issue date Dec 3, 1985
- Hitachi, Ltd.
- Yoshinori Imamura
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Photosensor
- Patent number 4,429,325
- Issue date Jan 31, 1984
- Hitachi, Ltd.
- Yukio Takasaki
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Photoelectric device and method of producing the same
- Patent number 4,394,749
- Issue date Jul 19, 1983
- Hitachi, Ltd.
- Toshihisa Tsukada
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Method of manufacturing target of image pickup tube
- Patent number 4,331,506
- Issue date May 25, 1982
- Hitachi, Ltd.
- Akira Sasano
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
RADIATION DETECTOR
- Publication number 20110163305
- Publication date Jul 7, 2011
- Hammamatsu Photonics K.K.
- Koichi Ogusu
- G01 - MEASURING TESTING

Tadaaki Hirai

Person

Patents Grantslast 30 patents

Radiation detector having a plurality of amorphous selenium layers

Method of and apparatus for picking up and displaying a stereoscopi...

Method of and apparatus for picking up and displaying a stereoscopi...

Image pickup tube utilizing third electrode and its operating method

Photoconductive imaging apparatus

Image pick-up tube and apparatus having the same

Photo-sensor and method for operating the same

Amorphous photoelectric conversion device with avalanche

Photoconductive device and method of operating same

X-ray television apparatus

Method of fabricating an image pick-up tube and target section used...

Multi-element type radiation detector

Electric conversion device

Photoconductive device and method of operating the same

Target of image pickup tube having an amorphous semiconductor laminate

Photoconductive device and method of operating the same

Light-detecting device

Method of making a photosensor

Target of image pickup tube

Method and apparatus for driving a plurality of pick-up tubes havin...

Electronic device having light transmission system

Image pickup tube

Photosensor having impurity concentration gradient

Doped photoconductive film including selenium and tellurium

Reduced degradation, high resolution image pickup tube

Photoelectric conversion apparatus

Photoelectric device

Photosensor

Photoelectric device and method of producing the same

Method of manufacturing target of image pickup tube

Patents Applicationslast 30 patents

RADIATION DETECTOR