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Yoshio Okada
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Tokyo, JP
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last 30 patents
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Patent Grant
Surface-acoustic-wave filters with poles of attenuation created by...
Patent number
RE37639
Issue date
Apr 9, 2002
Oki Electric Industry Co., Ltd.
Hisanori Ehara
333 - Wave transmission lines and networks
Information
Patent Grant
Constant-voltage generating device
Patent number
5,933,051
Issue date
Aug 3, 1999
Kabushiki Kaisha Toshiba
Kenji Tsuchida
G05 - CONTROLLING REGULATING
Information
Patent Grant
Surface-acoustic-wave filters with poles of attenuation created by...
Patent number
5,905,418
Issue date
May 18, 1999
Oki Electric Industry Co., Ltd.
Hisanori Ehara
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Stripline resonator
Patent number
5,525,954
Issue date
Jun 11, 1996
Oki Electric Industry Co., Ltd.
Tomokazu Komazaki
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Semiconductor memory device having redundancy memory cells
Patent number
5,357,470
Issue date
Oct 18, 1994
Kabushiki Kaisha Toshiba
Toshimasa Namekawa
G11 - INFORMATION STORAGE
Information
Patent Grant
Semiconductor memory device and method for controlling an output bu...
Patent number
5,295,117
Issue date
Mar 15, 1994
Kabushiki Kaisha Toshiba
Yoshio Okada
G11 - INFORMATION STORAGE
Information
Patent Grant
Protection circuit for use in semiconductor integrated circuit device
Patent number
5,072,271
Issue date
Dec 10, 1991
Kabushiki Kaisha Toshiba
Mitsuru Shimizu
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Semiconductor memory having improved sense amplifiers
Patent number
5,023,842
Issue date
Jun 11, 1991
Kabushiki Kaisha Toshiba
Yoshio Okada
G11 - INFORMATION STORAGE
Information
Patent Grant
Input protection circuit for semiconductor integrated circuit device
Patent number
4,994,874
Issue date
Feb 19, 1991
Kabushiki Kaisha Toshiba
Mitsuru Shimizu
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Input protection circuit for MOS device
Patent number
4,962,320
Issue date
Oct 9, 1990
Kabushiki Kaisha Toshiba
Yoshio Okada
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Semiconductor memory having barrier transistors connected between s...
Patent number
4,931,992
Issue date
Jun 5, 1990
Kabushiki Kaisha Toshiba
Masaki Ogihara
G11 - INFORMATION STORAGE
Information
Patent Grant
Semiconductor integrated circuit with input protection circuit
Patent number
4,849,654
Issue date
Jul 18, 1989
Kabushiki Kaisha Toshiba
Yoshio Okada
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Dynamic type memory device including a reference potential generati...
Patent number
4,788,668
Issue date
Nov 29, 1988
Kabushiki Kaisha Toshiba
Yoshio Okada
G11 - INFORMATION STORAGE
Information
Patent Grant
Self substrate bias generator formed in a well
Patent number
4,740,715
Issue date
Apr 26, 1988
Kabushiki Kaisha Toshiba
Yoshio Okada
G05 - CONTROLLING REGULATING
Information
Patent Grant
Intermediate potential generation circuit
Patent number
4,663,584
Issue date
May 5, 1987
Kabushiki Kaisha Toshiba
Yoshio Okada
G05 - CONTROLLING REGULATING