Inventor
SAKAMOTO MASAKAZU
JP80 patents
⚠️ This page may combine multiple inventors who share the name “SAKAMOTO MASAKAZU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
RYOBI LTD
44 patentsUSD321338SNov 5, 1991
Storage battery for electric tools
RYOBI LTD61 citations96
USD301967SJul 4, 1989
Power concrete hammer
RYOBI LTD48 citations96
USD404274SJan 19, 1999
Portable electric jigsaw
RYOBI LTD54 citations94
USD343554SJan 25, 1994
Electric trimmer
RYOBI LTD24 citations93
USD342878SJan 4, 1994
Portable electric hammer drill
RYOBI LTD38 citations93
USD332208SJan 5, 1993
Portable electric driver drill
RYOBI LTD39 citations93
USD280883SOct 8, 1985
Portable electric drill
RYOBI LTD27 citations92
USD280797SOct 1, 1985
Portable electric drill
RYOBI LTD45 citations92
USD255417SJun 17, 1980
Portable electric grinder
RYOBI LTD45 citations92
USD341533SNov 23, 1993
Portable electric hammer drill
RYOBI LTD17 citations82
USD339510SSep 21, 1993
Portable electric saw
RYOBI LTD18 citations82
USD337038SJul 6, 1993
Portable electric driver
RYOBI LTD17 citations82
USD325503SApr 21, 1992
Portable electric driver
RYOBI LTD20 citations82
USD323099SJan 14, 1992
Portable electric belt sander
RYOBI LTD19 citations82
USD321337SNov 5, 1991
Battery charger
RYOBI LTD18 citations82
USD326598SJun 2, 1992
Portable electric drill
RYOBI LTD19 citations80
USD345171SMar 15, 1994
Band saw
RYOBI LTD13 citations74
USD342425SDec 21, 1993
Electric mower
RYOBI LTD16 citations74
USD341532SNov 23, 1993
Concrete hammer
RYOBI LTD15 citations74
USD334756SApr 13, 1993
Compound miter saw
RYOBI LTD9 citations74
USD333953SMar 16, 1993
Portable electric trimmer
RYOBI LTD16 citations74
USD325858SMay 5, 1992
Portable electric driver
RYOBI LTD9 citations74
USD325861SMay 5, 1992
Portable electric driver
RYOBI LTD16 citations74
USD323098SJan 14, 1992
Portable electric plane
RYOBI LTD9 citations74
USD307377SApr 24, 1990
Grass shear
RYOBI LTD13 citations74
USD295945SMay 31, 1988
Portable electric jig saw
RYOBI LTD15 citations74
USD280846SOct 1, 1985
Fishing reel
RYOBI LTD10 citations74
USD277694SFeb 19, 1985
Fishing reel
RYOBI LTD6 citations74
USD269030SMay 17, 1983
Fishing reel
RYOBI LTD6 citations74
USD265914SAug 24, 1982
Printing machine
RYOBI LTD9 citations74
USD265497SJul 20, 1982
Fishing reel
RYOBI LTD15 citations74
USD263242SMar 2, 1982
Printing machine
RYOBI LTD9 citations74
USD261297SOct 13, 1981
Fishing reel
RYOBI LTD11 citations74
USD260804SSep 15, 1981
Fishing reel
RYOBI LTD13 citations74
USD257445SOct 21, 1980
Fishing reel
RYOBI LTD6 citations74
USD327669SJul 7, 1992
Battery charger
RYOBI LTD16 citations73
USD269031SMay 17, 1983
Fishing reel
RYOBI LTD9 citations73
USD277767SFeb 26, 1985
Printing machine
RYOBI LTD7 citations71
USD325862SMay 5, 1992
Portable electric mortiser
RYOBI LTD4 citations63
USD302930SAug 22, 1989
Portable electric sander
RYOBI LTD4 citations63
USD294727SMar 15, 1988
Fishing reel
RYOBI LTD3 citations63
USD293702SJan 12, 1988
Fishing reel
RYOBI LTD2 citations63
USD291110SJul 28, 1987
Fishing reel
RYOBI LTD2 citations63
USD275983SOct 16, 1984
Fishing reel
RYOBI LTD1 citations63
NICHIA CORP
5 patentsUS11439019B2Sep 6, 2022
Printed circuit board and method of manufacturing the same
NICHIA CORP2 citations73
US10477692B2Nov 12, 2019
Printed board, light source device, semiconductor device, and methods of manufacturing same
NICHIA CORP3 citations73
US12035481B2Jul 9, 2024
Circuit board, light emitting device, and manufacturing method thereof
NICHIA CORP1 citations63
US10964865B2Mar 30, 2021
Printed board, light emitting device, and method for manufacturing same
NICHIA CORP0 citations63
US10957836B2Mar 23, 2021
Printed board and light emitting device
NICHIA CORP1 citations63
FUJITSU LTD
1 patentShowing the top 50 of 80 patents by PatentIndex Score.