Inventor
NAGAMOTO ITSUSHI
JP22 patents
⚠️ This page may combine multiple inventors who share the name “NAGAMOTO ITSUSHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
YAMAHA CORP
15 patentsUS5908356AJun 1, 1999
Wood golf club head
YAMAHA CORP299 citations99
US5669827ASep 23, 1997
Metallic wood club head for golf
YAMAHA CORP382 citations99
US4795159AJan 3, 1989
Wood-type golf club head
YAMAHA CORP290 citations99
US5499819AMar 19, 1996
Golf club head and a method for producing the same
YAMAHA CORP108 citations98
US4884812ADec 5, 1989
Golf club head
YAMAHA CORP278 citations98
US4798383AJan 17, 1989
Golf club head
YAMAHA CORP177 citations98
US4792139ADec 20, 1988
Golf club head
YAMAHA CORP187 citations98
US4824116AApr 25, 1989
Golf club head
YAMAHA CORP318 citations97
US5454563AOct 3, 1995
Golf club
YAMAHA CORP59 citations96
US4883623ANov 28, 1989
Method for producing a golf club head
YAMAHA CORP76 citations93
US5910056AJun 8, 1999
Golf club
YAMAHA CORP26 citations92
US5792004AAug 11, 1998
Iron golf club and a method for producing the same
YAMAHA CORP28 citations92
US5647807AJul 15, 1997
Golf club
YAMAHA CORP47 citations92
US5611740AMar 18, 1997
Golf club
YAMAHA CORP33 citations92
US5586944ADec 24, 1996
Golf club head
YAMAHA CORP25 citations89
NIPPON MUSICAL INSTRUMENTS MFG
6 patentsUS4581190AApr 8, 1986
Process for producing a wood-type golf club head
NIPPON MUSICAL INSTRUMENTS MFG75 citations96
US4714577ADec 22, 1987
Method for producing a wood-type golf club head
NIPPON MUSICAL INSTRUMENTS MFG33 citations91
US4479652AOct 30, 1984
Wood-type golf club head
NIPPON MUSICAL INSTRUMENTS MFG8 citations74
US4283050AAug 11, 1981
Racket frame
NIPPON MUSICAL INSTRUMENTS MFG8 citations74
US4203596AMay 20, 1980
Racket and a method for manufacturing same
NIPPON MUSICAL INSTRUMENTS MFG17 citations74
US4145047AMar 20, 1979
Racket
NIPPON MUSICAL INSTRUMENTS MFG13 citations71