3 Patents
#1 in Nihonbashi
#8,780 in Japan
Mitsui Sekitan Kogyo Kabushiki Kaisha
Forward Citations = 38
5 inventors:
5 inventors (with patents filed for the assignee):
Hiroshi Kuroda (3 out of 25 patents)
Koji Sato (2 out of 13 patents)
Ryuji Yamada (2 out of 4 patents)
4. Mamoru Serino (2 out of 2 patents)
5. Osamu Kimura (1 out of 1 patent)
3 patents:
#1 in Nihonbashi
#8,780 in Japan
5 inventors: