2 Utility Patents
#61 in Tanashi
#304,758 in Japan
Forward Citations = 22
Company Filing History:
Aisan Kogyo Kabushiki Kaisha
Sumitomo Special Metals Co., Ltd.
Citizen Tokei Kabushiki Kaisha
4. 1 out of 2,002

5. 1 out of 1
Miyama Seiko Kabushiki Kaisha
where one patent can have more than one assignee
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