Inventor
AIZAWA YUICHI
JP42 patents
⚠️ This page may combine multiple inventors who share the name “AIZAWA YUICHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
DAIWA GOLF
14 patentsUS5346216ASep 13, 1994
Golf club head
DAIWA GOLF385 citations99
US4664383AMay 12, 1987
Iron-type golf club head
DAIWA GOLF159 citations99
US5348302ASep 20, 1994
Golf club head
DAIWA GOLF173 citations98
US5078397AJan 7, 1992
Golf club head
DAIWA GOLF129 citations98
US5472201ADec 5, 1995
Golf club head and striking face
DAIWA GOLF276 citations97
USD362041SSep 5, 1995
Golf club head
DAIWA GOLF58 citations96
US5242168ASep 7, 1993
Golf club head
DAIWA GOLF86 citations96
US5207428AMay 4, 1993
Golf club head
DAIWA GOLF52 citations96
US4754975AJul 5, 1988
Iron club head
DAIWA GOLF60 citations96
USD332984SFeb 2, 1993
Golf club head
DAIWA GOLF28 citations93
US5465968ANov 14, 1995
Golf clubhead having beryllium face plate
DAIWA GOLF42 citations92
USD362481SSep 19, 1995
Golf club head
DAIWA GOLF39 citations92
USD368945SApr 16, 1996
Golf club head
DAIWA GOLF15 citations74
USD327523SJun 30, 1992
Golf club head
DAIWA GOLF11 citations74
DAIWA SEIKO INC
12 patentsUS5697855ADec 16, 1997
Golf club head
DAIWA SEIKO INC199 citations99
US5643103AJul 1, 1997
Golf club set
DAIWA SEIKO INC100 citations98
US5616088AApr 1, 1997
Golf club head
DAIWA SEIKO INC245 citations98
US5547194AAug 20, 1996
Golf club head
DAIWA SEIKO INC217 citations98
US5669824ASep 23, 1997
Iron club and iron club set
DAIWA SEIKO INC53 citations96
US5816936AOct 6, 1998
Golf club head and method of manufacturing the same
DAIWA SEIKO INC93 citations95
US5586949ADec 24, 1996
Hollow club head with sole plate support structure
DAIWA SEIKO INC39 citations93
US5697854ADec 16, 1997
Golf club head and method of manufacturing the same
DAIWA SEIKO INC22 citations92
US5686155ANov 11, 1997
Hollow cylindrical member
DAIWA SEIKO INC36 citations92
US5665441ASep 9, 1997
Hollow cylindricall member
DAIWA SEIKO INC38 citations92
US5658207AAug 19, 1997
Golf club head
DAIWA SEIKO INC50 citations92
USD377381SJan 14, 1997
Golf club head
DAIWA SEIKO INC46 citations92
SANKYO CO
5 patentsUS4873255AOct 10, 1989
Thiazolidinone derivatives, their preparation and their use
SANKYO CO91 citations96
US6096771AAug 1, 2000
Isoxazole derivatives
SANKYO CO58 citations95
US5965591AOct 12, 1999
Isoxazole derivatives
SANKYO CO32 citations91
US5338855AAug 16, 1994
Thiazolidine compounds containing a quinone group, their preparation and their therapeutic uses
SANKYO CO14 citations74
US4933355AJun 12, 1990
Thiazole derivatives, their preparation and their use in the treatment of diabetes complications
SANKYO CO12 citations74
NAKAYAMA MASAYOSHI
3 patentsUS9696654B2Jul 4, 2017
Image forming apparatus comprising image density detector and toner concentration detector
NAKAYAMA MASAYOSHI2 citations71
US10241462B2Mar 26, 2019
Image forming apparatus
NAKAYAMA MASAYOSHI0 citations38
US9500978B2Nov 22, 2016
Image forming apparatus including electric charge removing device and method of forming image
NAKAYAMA MASAYOSHI0 citations37