9 Utility and 6 Design Patents
#17,786 in Tokyo
#95,358 in Japan
#456,385 in the World
rank by utility patentsForward Citations = 70
Company Filing History:
Sumitomo Forestry Co., Ltd.
Kanai Co., Ltd.

4. 1 out of 1,227

5. 1 out of 30
Pioneer Electronics Corporation
where one patent can have more than one assignee
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