Kazuhiro Doi

Person

Osaka, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Iron golf club head
- Patent number 11,628,338
- Issue date Apr 18, 2023
- Mizuno Corporation
- Kazuhiro Doi
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Grant
Method for manufacturing iron golf club head, iron golf club head,...
- Patent number 11,007,411
- Issue date May 18, 2021
- Mizuno Corporation
- Kazuhiro Doi
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Iron golf club head and iron golf club
- Patent number 10,709,943
- Issue date Jul 14, 2020
- Mizuno Corporation
- Kensuke Maenaka
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Grant
Method for manufacturing iron golf club head, iron golf club head,...
- Patent number 10,688,354
- Issue date Jun 23, 2020
- Mizuno Corporation
- Kazuhiro Doi
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Golf club head and golf club
- Patent number 10,357,696
- Issue date Jul 23, 2019
- Mizuno Corporation
- Kazuhiro Doi
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Grant
Golf club head and golf club
- Patent number 10,245,475
- Issue date Apr 2, 2019
- Mizuno Corporation
- Tomoaki Aoki
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Grant
Iron golf club head and iron golf club
- Patent number 9,522,311
- Issue date Dec 20, 2016
- Mizuno Corporation
- Kazuhiro Doi
- C21 - METALLURGY OF IRON
Information Patent Grant
Iron-type golf club head
- Patent number D736872
- Issue date Aug 18, 2015
- Mizuno USA, Inc.
- David Llewellyn
- D21 - Games, toys, and sports goods
Information Patent Grant
Iron-type golf club head
- Patent number D736873
- Issue date Aug 18, 2015
- Mizuno USA, Inc.
- Chris Voshall
- D21 - Games, toys, and sports goods
Information Patent Grant
Iron-type golf club head
- Patent number D736875
- Issue date Aug 18, 2015
- Mizuno USA, Inc.
- David Llewellyn
- D21 - Games, toys, and sports goods
Information Patent Grant
Iron-type golf club head
- Patent number D720027
- Issue date Dec 23, 2014
- Mizuno USA, Inc.
- Chris Voshall
- D21 - Games, toys, and sports goods
Information Patent Grant
Iron-type golf club head
- Patent number D720026
- Issue date Dec 23, 2014
- Mizuno USA, Inc.
- David Llewellyn
- D21 - Games, toys, and sports goods
Information Patent Grant
Iron golf club head and iron golf club
- Patent number 8,834,292
- Issue date Sep 16, 2014
- Mizuno Corporation
- Kei Tsuji
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Grant
Iron-type golf club head
- Patent number D682962
- Issue date May 21, 2013
- Mizuno USA, Inc.
- David Llewellyn
- D21 - Games, toys, and sports goods
Information Patent Grant
Iron-type golf club head
- Patent number D650878
- Issue date Dec 20, 2011
- Mizuno USA, Inc.
- David Llewellyn
- D21 - Games, toys, and sports goods
Information Patent Grant
Iron golf club heads and golf club sets with variable weight distri...
- Patent number 8,021,246
- Issue date Sep 20, 2011
- Mizuno USA, Inc.
- David Llewellyn
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Grant
Iron-type golf club
- Patent number D645103
- Issue date Sep 13, 2011
- Mizuno USA
- David Llewellyn
- D21 - Games, toys, and sports goods
Information Patent Grant
Iron-type golf club head
- Patent number D641444
- Issue date Jul 12, 2011
- Mizuno USA
- David Llewellyn
- D21 - Games, toys, and sports goods
Information Patent Grant
Iron golf club heads and golf club sets with variable weight distri...
- Patent number 7,972,222
- Issue date Jul 5, 2011
- Mizuno USA, Inc.
- David Llewellyn
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Grant
Iron-type golf club
- Patent number D629061
- Issue date Dec 14, 2010
- Mizuno USA, Inc.
- David Llewellyn
- D21 - Games, toys, and sports goods
Information Patent Grant
Back design for iron golf club heads
- Patent number D619183
- Issue date Jul 6, 2010
- Mizuno USA, Inc.
- David Llewellyn
- D21 - Games, toys, and sports goods
Information Patent Grant
Back design for iron golf club heads
- Patent number D619184
- Issue date Jul 6, 2010
- Mizuno USA. Inc.
- David Llewellyn
- D21 - Games, toys, and sports goods
Information Patent Grant
Back design for an iron golf club head
- Patent number D606606
- Issue date Dec 22, 2009
- Mizuno USA, Inc.
- David Llewellyn
- D21 - Games, toys, and sports goods
Information Patent Grant
Back design for an iron golf club head
- Patent number D603923
- Issue date Nov 10, 2009
- Mizuno USA, Inc.
- David Llewellyn
- D21 - Games, toys, and sports goods

Patents Applicationslast 30 patents

Information Patent Application
MODULAR PUTTER
- Publication number 20250073547
- Publication date Mar 6, 2025
- Mizuno Corporation
- David Llewellyn
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Application
Iron Golf Club Head and Iron Golf Club
- Publication number 20230390616
- Publication date Dec 7, 2023
- Mizuno Corporation
- Daisuke HOSOOKA
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Application
Iron Golf Club Head
- Publication number 20210299524
- Publication date Sep 30, 2021
- Mizuno Corporation
- Kazuhiro Doi
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Application
Method for Manufacturing Iron Golf Club Head, Iron Golf Club Head,...
- Publication number 20200254314
- Publication date Aug 13, 2020
- Mizuno Corporation
- Kazuhiro DOI
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Application
Method for Manufacturing Iron Golf Club Head, Iron Golf Club Head,...
- Publication number 20190358503
- Publication date Nov 28, 2019
- Mizuno Corporation
- Kazuhiro DOI
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Application
IRON GOLF CLUB HEAD AND IRON GOLF CLUB
- Publication number 20190299069
- Publication date Oct 3, 2019
- Mizuno Corporation
- Kensuke Maenaka
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Application
GOLF CLUB HEAD AND GOLF CLUB
- Publication number 20190022474
- Publication date Jan 24, 2019
- Mizuno Corporation
- Tomoaki Aoki
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Application
GOLF CLUB HEAD AND GOLF CLUB
- Publication number 20180185716
- Publication date Jul 5, 2018
- Mizuno Corporation
- Kazuhiro Doi
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Application
FORGED SLOTTED IRON GOLF CLUB
- Publication number 20180056151
- Publication date Mar 1, 2018
- Mizuno Corporation
- Kazuhiro Doi
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Application
FORGED SLOTTED IRON GOLF CLUB
- Publication number 20170036076
- Publication date Feb 9, 2017
- MIZUNO USA, INC.
- Kazuhiro Doi
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
GOLF CLUB HEAD AND GOLF CLUB
- Publication number 20150273287
- Publication date Oct 1, 2015
- Mizuno Corporation
- Kazuhiro Doi
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Application
IRON GOLF CLUB HEAD AND IRON GOLF CLUB
- Publication number 20150072804
- Publication date Mar 12, 2015
- Mizuno Corporation
- Kazuhiro Doi
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Application
IRON GOLF CLUB HEAD AND IRON GOLF CLUB
- Publication number 20120252600
- Publication date Oct 4, 2012
- Mizuno Corporation
- Kei Tsuji
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Application
IRON GOLF CLUB HEADS AND GOLF CLUB SETS WITH VARIABLE WEIGHT DISTRI...
- Publication number 20100167834
- Publication date Jul 1, 2010
- MIZUNO USA, INC.
- David Llewellyn
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Application
IRON GOLF CLUB HEADS AND GOLF CLUB SETS WITH VARIABLE WEIGHT DISTRI...
- Publication number 20100160067
- Publication date Jun 24, 2010
- MIZUNO USA, INC.
- DAVID LLEWELLYN
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Application
GOLF CLUB AND MANUFACTURING METHOD THEREOF
- Publication number 20090253531
- Publication date Oct 8, 2009
- Mizuno Corporation
- Kazuhiro Doi
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Application
GOLF CLUB AND MANUFACTURING METHOD THEREOF
- Publication number 20090247317
- Publication date Oct 1, 2009
- Mizuno Corporation
- Kazuhiro Doi
- A63 - SPORTS GAMES AMUSEMENTS

Kazuhiro Doi

Person

Patents Grantslast 30 patents

Iron golf club head

Method for manufacturing iron golf club head, iron golf club head,...

Iron golf club head and iron golf club

Method for manufacturing iron golf club head, iron golf club head,...

Golf club head and golf club

Golf club head and golf club

Iron golf club head and iron golf club

Iron-type golf club head

Iron-type golf club head

Iron-type golf club head

Iron-type golf club head

Iron-type golf club head

Iron golf club head and iron golf club

Iron-type golf club head

Iron-type golf club head

Iron golf club heads and golf club sets with variable weight distri...

Iron-type golf club

Iron-type golf club head

Iron golf club heads and golf club sets with variable weight distri...

Iron-type golf club

Back design for iron golf club heads

Back design for iron golf club heads

Back design for an iron golf club head

Back design for an iron golf club head

Patents Applicationslast 30 patents

MODULAR PUTTER

Iron Golf Club Head and Iron Golf Club

Iron Golf Club Head

Method for Manufacturing Iron Golf Club Head, Iron Golf Club Head,...

Method for Manufacturing Iron Golf Club Head, Iron Golf Club Head,...

IRON GOLF CLUB HEAD AND IRON GOLF CLUB

GOLF CLUB HEAD AND GOLF CLUB

GOLF CLUB HEAD AND GOLF CLUB

FORGED SLOTTED IRON GOLF CLUB

FORGED SLOTTED IRON GOLF CLUB

GOLF CLUB HEAD AND GOLF CLUB

IRON GOLF CLUB HEAD AND IRON GOLF CLUB

IRON GOLF CLUB HEAD AND IRON GOLF CLUB

IRON GOLF CLUB HEADS AND GOLF CLUB SETS WITH VARIABLE WEIGHT DISTRI...

IRON GOLF CLUB HEADS AND GOLF CLUB SETS WITH VARIABLE WEIGHT DISTRI...

GOLF CLUB AND MANUFACTURING METHOD THEREOF

GOLF CLUB AND MANUFACTURING METHOD THEREOF