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USPTO Patent Rankings Data through Sept 30, 2025
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Munetoshi Zen — 7 Patents

Hitachi: 7 patents #5,859 of 28,497Top 25%
Kashiwa, JP: #166 of 653 inventorsTop 30%
Overall (All Time): #759,969 of 4,157,543Top 20%
7 Patents All Time

Issued Patents All Time

Showing 1–7 of 7 patents

Patent #TitleCo-InventorsDate
6379998 Semiconductor device and method for fabricating the same Hiroyuki Ohta, Hideo Miura, Mitsuo Usami, Masatsugu Kametani, Noriaki Okamoto 2002-04-30
5909052 Semiconductor device having plural chips with the sides of the chips in face-to-face contact with each other in the same crystal plane Hiroyuki Ohta, Hideo Miura, Mitsuo Usami, Masatsugu Kametani, Noriaki Okamoto 1999-06-01
5157414 Thick film type thermal head and thermal recording device Taisaku Seino, Michihiro Watanabe, Kazutaka Sato, Shigeru Obata, Maya Arai +2 more 1992-10-20
5109238 Thick film resistor material and thermal head obtained therefrom Michihiro Watanabe, Kazutaka Sato, Kazuhiko Ato, Yoshinobu Watanabe, Sadayoshi Taguchi 1992-04-28
5021194 Thick film resistor material and thermal head obtained therefrom Michihiro Watanabe, Kazutaka Sato, Kazuhiko Ato, Yoshinobu Watanabe, Sadayoshi Taguchi 1991-06-04
4835550 Thick film type thermal head Kazutaka Sato, Michihiro Watanabe, Shigeru Obata, Kazuhiko Atoh, Katsuhiko Kamachi 1989-05-30
4738871 Heat-sensitive recording head and method of manufacturing same Michihiro Watanabe, Kazutaka Sato, Kazuhiko Ato 1988-04-19