Inventor
NAKASUKA HIROYUKI
JP20 patents
⚠️ This page may combine multiple inventors who share the name “NAKASUKA HIROYUKI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
KAI R&D CENTER CO LTD
12 patentsUS7877879B2Feb 1, 2011
Razor
KAI R&D CENTER CO LTD99 citations97
US8046920B2Nov 1, 2011
Razor
KAI R&D CENTER CO LTD26 citations92
US7992304B2Aug 9, 2011
Razor
KAI R&D CENTER CO LTD32 citations92
USD632433SFeb 8, 2011
Razor handle
KAI R&D CENTER CO LTD37 citations92
USD611654SMar 9, 2010
Safety razor holder
KAI R&D CENTER CO LTD37 citations92
USD590996SApr 21, 2009
Safety razor holder
KAI R&D CENTER CO LTD20 citations92
US7191523B2Mar 20, 2007
Safety razor
KAI R&D CENTER CO LTD40 citations92
USD516243SFeb 28, 2006
Replaceable razor cartridge
KAI R&D CENTER CO LTD26 citations92
USD499843SDec 14, 2004
Blade for safety razor
KAI R&D CENTER CO LTD20 citations92
USD443111SMay 29, 2001
Protective cap for a safety razor
KAI R&D CENTER CO LTD29 citations92
US7971363B2Jul 5, 2011
Oscillating razor
KAI R&D CENTER CO LTD19 citations84
USD593250SMay 26, 2009
Replaceable razor cartridge
KAI R&D CENTER CO LTD1 citations52
BEIERSDORF AG
4 patentsUS11279053B2Mar 22, 2022
Safety razor and blade unit for safety razor
BEIERSDORF AG0 citations49
US10807258B2Oct 20, 2020
Safety razor and blade unit for safety razor
BEIERSDORF AG0 citations47
US10717202B2Jul 21, 2020
Safety razor and blade unit for safety razor
BEIERSDORF AG0 citations47
US10391653B2Aug 27, 2019
Safety razor and blade unit for safety razor
BEIERSDORF AG0 citations47