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Hirofumi Kawai
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Kanagawa, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Semiconductor device having an insulator between source and drain r...
Patent number
11,362,208
Issue date
Jun 14, 2022
Kabushiki Kaisha Toshiba
Hirofumi Kawai
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Semiconductor device having a trench for isolating elements and a t...
Patent number
5,675,173
Issue date
Oct 7, 1997
Kabushiki Kaisha Toshiba
Hirofumi Kawai
H01 - BASIC ELECTRIC ELEMENTS
Patents Applications
last 30 patents
Information
Patent Application
SEMICONDUCTOR DEVICE
Publication number
20230261105
Publication date
Aug 17, 2023
Kabushiki Kaisha Toshiba
Takuya YASUTAKE
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
SEMICONDUCTOR DEVICE AND METHOD FOR PRODUCING THE SAME
Publication number
20200287045
Publication date
Sep 10, 2020
Kabushiki Kaisha Toshiba
Hirofumi KAWAI
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
SEMICONDUCTOR DEVICE
Publication number
20200091341
Publication date
Mar 19, 2020
Kabushiki Kaisha Toshiba
Yasunori Iwatsu
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Semiconductor device and method for manufacturing a semiconductor d...
Publication number
20040097049
Publication date
May 20, 2004
Kabushiki Kaisha Toshiba
Hirofumi Kawai
H01 - BASIC ELECTRIC ELEMENTS