Inventor
IZUMISAWA OSAMU
JP42 patents
⚠️ This page may combine multiple inventors who share the name “IZUMISAWA OSAMU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
S P AIR KK
14 patentsUS6880645B2Apr 19, 2005
Pneumatic rotary tool
S P AIR KK59 citations96
US6796386B2Sep 28, 2004
Pneumatic rotary tool
S P AIR KK62 citations96
US6311583B1Nov 6, 2001
Ratchet wrench with pivotable head
S P AIR KK65 citations96
USD436818SJan 30, 2001
Impact wrench
S P AIR KK79 citations96
US6158528ADec 12, 2000
Hand-held pneumatic rotary drive device
S P AIR KK70 citations96
US7404450B2Jul 29, 2008
Pneumatic rotary tool
S P AIR KK27 citations93
USRE39009EMar 14, 2006
Hand-held pneumatic rotary drive device
S P AIR KK16 citations93
US6578643B2Jun 17, 2003
Pneumatic ratchet drive wrench
S P AIR KK37 citations93
US6443239B1Sep 3, 2002
Pneumatic rotary tool
S P AIR KK53 citations93
USD440848SApr 24, 2001
Square drive wrench having offset head
S P AIR KK38 citations93
USD430995SSep 19, 2000
Miniature sander
S P AIR KK21 citations93
USD440847SApr 24, 2001
Square drive wrench having angled head
S P AIR KK4 citations63
USD439485SMar 27, 2001
Square drive wrench having offset head
S P AIR KK4 citations63
USD439486SMar 27, 2001
Square drive wrench having angled head
S P AIR KK3 citations63
SHINANO PNEUMATIC IND INC
12 patentsUS5784934AJul 28, 1998
Ratchet wrench with pivotable head
SHINANO PNEUMATIC IND INC1,614 citations99
USD357848SMay 2, 1995
Angle head die grinder
SHINANO PNEUMATIC IND INC24 citations93
USD353984SJan 3, 1995
Orbital sander
SHINANO PNEUMATIC IND INC20 citations93
US5199505AApr 6, 1993
Rotary impact tool
SHINANO PNEUMATIC IND INC50 citations93
USD334124SMar 23, 1993
Pneumatic socket wrench
SHINANO PNEUMATIC IND INC32 citations93
USD334125SMar 23, 1993
Pneumatic socket wrench
SHINANO PNEUMATIC IND INC22 citations93
US4821611AApr 18, 1989
Tightening device
SHINANO PNEUMATIC IND INC53 citations93
USD356017SMar 7, 1995
Miniature orbital sander
SHINANO PNEUMATIC IND INC17 citations82
USD354424SJan 17, 1995
Miniature dual action orbital sander
SHINANO PNEUMATIC IND INC14 citations74
USD353757SDec 27, 1994
Dual-acting sander
SHINANO PNEUMATIC IND INC3 citations63
USD349027SJul 26, 1994
Miniature butterfly impact wrench
SHINANO PNEUMATIC IND INC4 citations63
USD353525SDec 20, 1994
Miniature dual-acting sander
SHINANO PNEUMATIC IND INC0 citations52
S P AIR KABUSIKI KAISHA
6 patentsUS5918686AJul 6, 1999
Pneumatic rotary tool
S P AIR KABUSIKI KAISHA117 citations98
USD434298SNov 28, 2000
Impact wrench
S P AIR KABUSIKI KAISHA69 citations96
US5919085AJul 6, 1999
Power abrading tool having dust abatement feature
S P AIR KABUSIKI KAISHA74 citations96
US6065216AMay 23, 2000
Reciprocating pneumatic saw
S P AIR KABUSIKI KAISHA23 citations92
USD408243SApr 20, 1999
Pneumatic hand tool
S P AIR KABUSIKI KAISHA46 citations92
USD403564SJan 5, 1999
Impact wrench
S P AIR KABUSIKI KAISHA46 citations92
IZUMISAWA OSAMU
6 patentsUSD269938SAug 2, 1983
Air ratchet wrench
IZUMISAWA OSAMU32 citations92
USD361028SAug 8, 1995
Angle head die grinder
IZUMISAWA OSAMU17 citations82
USD269846SJul 26, 1983
Air grinder
IZUMISAWA OSAMU19 citations82
USD265962SAug 31, 1982
Ratchet type socket wrench
IZUMISAWA OSAMU21 citations82
USD300313SMar 21, 1989
Portable pneumatic tool
IZUMISAWA OSAMU9 citations74
USD269847SJul 26, 1983
Air grinder
IZUMISAWA OSAMU16 citations74