2 Patents
#4,070 in Tokyo
#10,988 in Japan
Seibu Oil Co., Ltd.
Forward Citations = 2
7 inventors:
7 inventors (with patents filed for the assignee):
Tadashi Sasaki (1 out of 13 patents)
Seiji Ishikawa (1 out of 10 patents)
Yukio Matsumoto (1 out of 3 patents)
4. Kenji Sugiyama (1 out of 1 patent)
5. Tutomu Kaibara (1 out of 1 patent)
6. Shuuichi Hirano (1 out of 1 patent)
7. Takuo Morishige (1 out of 1 patent)
2 patents: