13 Utility Patents
#12,216 in Tokyo
#63,510 in Japan
#297,766 in the World
Forward Citations = 498
Company Filing History:

Ohtsuka Patent Office
Canon Kabushiki Xaisha
Get your Inventor Badge Today
#12,216 in Tokyo
#63,510 in Japan
#297,766 in the World
Company Filing History:

Get your Inventor Badge Today