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USPTO Data Jan 1 1976 - Dec 30 2025
30 Patents
#42 in Saitama 343-0827
#2,253 in Japan
#21,210 in the World
Hitachi Tobu Semiconductor
Forward Citations = 1,120
55 inventors:
Hitachi Tobu Semiconductor
Forward Citations = 1,120
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55 inventors (with patents filed for the assignee):
Hiroshi Inagawa (10 out of 36 patents)
Kentaro Oishi (10 out of 25 patents)
Nobuo Machida (10 out of 34 patents)
4. Toshio Sugano (7 out of 58 patents)
5. Seiichiro Tsukui (6 out of 16 patents)
6. Masayuki Watanabe (5 out of 26 patents)
7. Yoshiaki Wakashima (5 out of 15 patents)
8. Sugano Toshio (5 out of 10 patents)
9. Atsushi Sasayama (5 out of 9 patents)
10. Kunihiko Nishi (4 out of 103 patents)
11. Tugio Nemoto (4 out of 8 patents)
12. Haruo Kugimiya (4 out of 4 patents)
13. Kunio Aiki (4 out of 20 patents)
14. Aizo Kaneda (3 out of 50 patents)
15. Michiharu Honda (3 out of 12 patents)
30 patents:
1. 8377775 - Insulated gate type semiconductor device and method for fabricating the same (2013-02-19),
2. 8278708 - Insulated gate type semiconductor device and method for fabricating the same (2012-10-02),
3. 8168498 - Insulated gate type semiconductor device and method for fabricating the same (2012-05-01),
4. 8148224 - Insulated gate type semiconductor device and method for fabricating the same (2012-04-03),
5. 7910990 - Insulated gate type semiconductor device and method for fabricating the same (2011-03-22),
6. 7843001 - Insulated gate type semiconductor device and method for fabricating the same (2010-11-30),
7. 7585732 - Insulated gate type semiconductor device and method for fabricating the same (2009-09-08),
8. 7361557 - Insulated gate type semiconductor device and method for fabricating the same (2008-04-22),
9. 7172941 - Insulated gate type semiconductor device and method for fabricating the same (2007-02-06),
Hitachi Tobu Semiconductor is a leading global provider of advanced semiconductor solutions. Leveraging cutting-edge technology, we specialize in the design, development, and manufacturing of high-performance semiconductors for various industries including automotive, telecommunications, industrial, and consumer electronics. Our commitment to innovation and quality has earned us a trusted reputation among our customers worldwide. Visit our website to learn more about our products and solutions.
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