4 Utility and 1 Design Patents
#107 in Kiryu
#193,296 in Japan
rank by utility patentsForward Citations = 13
Company Filing History:



4. 1 out of 22
Johnan Manufacturing Inc.
5. 1 out of 1,229
Nhk Spring Co., Ltd.
where one patent can have more than one assignee
Get your Inventor Badge Today