OI

Osamu Izumisawa

SK Sp Air Kabushiki Kaisha: 25 patents #1 of 5Top 20%
SI Shinano Pneumatic Industries: 12 patents #1 of 3Top 35%
📍 Oshima, JP: #11 of 1,090 inventorsTop 2%
Overall (All Time): #71,129 of 4,157,543Top 2%
43
Patents All Time

Issued Patents All Time

Showing 26–43 of 43 patents

Patent #TitleCo-InventorsDate
5784934 Ratchet wrench with pivotable head 1998-07-28
D361028 Angle head die grinder 1995-08-08
D357848 Angle head die grinder 1995-05-02
D356017 Miniature orbital sander 1995-03-07
D354424 Miniature dual action orbital sander 1995-01-17
D353984 Orbital sander 1995-01-03
D353757 Dual-acting sander 1994-12-27
D353525 Miniature dual-acting sander 1994-12-20
D349027 Miniature butterfly impact wrench 1994-07-26
5199505 Rotary impact tool 1993-04-06
D334124 Pneumatic socket wrench 1993-03-23
D334125 Pneumatic socket wrench 1993-03-23
4821611 Tightening device 1989-04-18
D300313 Portable pneumatic tool 1989-03-21
D269938 Air ratchet wrench 1983-08-02
D269846 Air grinder 1983-07-26
D269847 Air grinder 1983-07-26
D265962 Ratchet type socket wrench 1982-08-31