MS

Masakazu Sakamoto

RY Ryobi: 56 patents #1 of 309Top 1%
Nichia: 12 patents #151 of 1,531Top 10%
Fujitsu Limited: 7 patents #4,529 of 24,456Top 20%
Bridgestone: 3 patents #795 of 2,860Top 30%
LS Laser Systems: 1 patents #6 of 14Top 45%
📍 Tokushima, JP: #11 of 1,059 inventorsTop 2%
Overall (All Time): #23,657 of 4,157,543Top 1%
78
Patents All Time

Issued Patents All Time

Showing 26–50 of 78 patents

Patent #TitleCo-InventorsDate
D342878 Portable electric hammer drill Satoru Watanabe 1994-01-04
D342425 Electric mower Satoru Watanabe 1993-12-21
D341532 Concrete hammer Satoru Watanabe 1993-11-23
D341533 Portable electric hammer drill Nobuhiko Karafuji 1993-11-23
D339510 Portable electric saw Toshiaki Saito 1993-09-21
D337038 Portable electric driver Naoki Kikuchi 1993-07-06
D334756 Compound miter saw Toshiaki Saito 1993-04-13
D333953 Portable electric trimmer Hiroaki Miyoshi 1993-03-16
D332208 Portable electric driver drill Naoki Kikuchi 1993-01-05
D327669 Battery charger Noboru Nakanishi 1992-07-07
D326598 Portable electric drill Hitoshi Tsuru 1992-06-02
D325861 Portable electric driver Toshiaki Saito 1992-05-05
D325858 Portable electric driver Toshiaki Saito 1992-05-05
D325862 Portable electric mortiser Mitsumasa Sato, Kouichi Miyamoto 1992-05-05
D325503 Portable electric driver Naoki Kikuchi 1992-04-21
D323098 Portable electric plane Toshiaki Saito 1992-01-14
D323099 Portable electric belt sander Naoki Kikuchi 1992-01-14
D321338 Storage battery for electric tools Naoki Kikuchi, Noboru Nakanishi 1991-11-05
D321337 Battery charger Naoki Kikuchi, Noboru Nakanishi 1991-11-05
D307377 Grass shear Kiyoshi Hoshino 1990-04-24
D302930 Portable electric sander Toshiaki Saito 1989-08-22
D301967 Power concrete hammer Toshiaki Saito 1989-07-04
D295945 Portable electric jig saw Toshiaki Saito 1988-05-31
D294727 Fishing reel Kiyoshi Hoshino 1988-03-15
D294623 Fishing reel Teruhisa Numata 1988-03-08