28 Utility Patents
#37 in Sendai
#22,052 in Japan
#102,774 in the World
Forward Citations = 318
Company Filing History:

Other
Yoshida Kogyo K.k.
4. 8 out of 67
Teikoku Piston Ring Co., Ltd.
5. 4 out of 10,092

where one patent can have more than one assignee
Get your Inventor Badge Today