Takuji HAMASAKI

Person

Tokyo, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Lens barrel and camera
- Patent number 10,877,236
- Issue date Dec 29, 2020
- Nikon Corporation
- Kazuaki Kamio
- G02 - OPTICS
Information Patent Grant
Optical system and optical device provided therewith
- Patent number 10,466,453
- Issue date Nov 5, 2019
- Nikon Corporation
- Hiroyuki Ishigami
- G02 - OPTICS
Information Patent Grant
Interchangeable lens incorporating a lens drive motor
- Patent number 7,864,462
- Issue date Jan 4, 2011
- Hoya Corporation
- Takuji Hamasaki
- G02 - OPTICS
Information Patent Grant
One-way rotational transfer mechanism, and ultrasonic rotary drive...
- Patent number 7,839,053
- Issue date Nov 23, 2010
- Hoya Corporation
- Takuji Hamasaki
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Image-capturing apparatus and camera-shake compensation mechanism
- Patent number 7,742,076
- Issue date Jun 22, 2010
- Hoya Corporation
- Shuzo Seo
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Ultrasonic rotary drive device
- Patent number 7,531,942
- Issue date May 12, 2009
- Hoya Corporation
- Takuji Hamasaki
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
One-way rotational transfer mechanism
- Patent number 7,318,508
- Issue date Jan 15, 2008
- PENTAX Corporation
- Takuji Hamasaki
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Rotational transfer mechanism
- Patent number 7,213,693
- Issue date May 8, 2007
- PENTAX Corporation
- Makoto Iikawa
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
One-way rotational transfer mechanism
- Patent number 7,201,262
- Issue date Apr 10, 2007
- PENTAX Corporation
- Takuji Hamasaki
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Lens body tube
- Patent number 7,184,228
- Issue date Feb 27, 2007
- PENTAX Corporation
- Takuji Hamasaki
- G02 - OPTICS
Information Patent Grant
One-way rotational transfer mechanism, and a lens barrel incorporat...
- Patent number 7,102,837
- Issue date Sep 5, 2006
- PENTAX Corporation
- Takuji Hamasaki
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Lens barrel incorporating a one-way rotational transfer mechanism
- Patent number 7,099,576
- Issue date Aug 29, 2006
- PENTAX Corporation
- Takuji Hamasaki
- G02 - OPTICS
Information Patent Grant
Lens body tube
- Patent number 7,088,523
- Issue date Aug 8, 2006
- PENTAX Corporation
- Takuji Hamasaki
- G02 - OPTICS
Information Patent Grant
Power/manual lens barrel having a manual operating ring
- Patent number 6,879,445
- Issue date Apr 12, 2005
- PENTAX Corporation
- Takuji Hamasaki
- G02 - OPTICS
Information Patent Grant
One-way rotational transfer mechanism
- Patent number 6,827,190
- Issue date Dec 7, 2004
- PENTAX Corporation
- Takuji Hamasaki
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Lens barrel
- Patent number 6,747,807
- Issue date Jun 8, 2004
- PENTAX Corporation
- Makoto Iikawa
- G02 - OPTICS
Information Patent Grant
Varifocal lens barrel and a lens drive mechanism
- Patent number 6,631,035
- Issue date Oct 7, 2003
- PENTAX Corporation
- Makoto Iikawa
- G02 - OPTICS
Information Patent Grant
Method for molding cam ring with convex cams, molding die assembly,...
- Patent number 6,594,088
- Issue date Jul 15, 2003
- PENTAX Corporation
- Makoto Iikawa
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Zoom lens system and adjusting method of same
- Patent number 6,397,009
- Issue date May 28, 2002
- Asahi Kogaku Kogyo Kabushiki Kaisha
- Takayuki Ito
- G02 - OPTICS
Information Patent Grant
Device for adjusting the eccentricity of a lens in a frame
- Patent number 6,388,826
- Issue date May 14, 2002
- Asahi Kogaku Kogyo Kabushiki Kaisha
- Makoto Iikawa
- G02 - OPTICS
Information Patent Grant
Vari-focal lens
- Patent number 6,333,825
- Issue date Dec 25, 2001
- Asahi Kogaku Kogyo Kabuhsiki Kaisha
- Takuji Hamasaki
- G02 - OPTICS
Information Patent Grant
Lens hood
- Patent number 6,269,227
- Issue date Jul 31, 2001
- Asahi Kogaku Kogyo Kabushiki Kaisha
- Takuji Hamasaki
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Floating lens barrel, lens barrel, and a common lens barrel system
- Patent number 6,236,523
- Issue date May 22, 2001
- Asahi Kogaku Kogyo Kabushiki Kaisha
- Makoto Iikawa
- G02 - OPTICS
Information Patent Grant
Floating lens barrel, lens barrel, and a common lens barrel system
- Patent number 6,118,601
- Issue date Sep 12, 2000
- Asahi Kogaku Kogyo Kabushiki Kaisha
- Makoto Iikawa
- G02 - OPTICS
Information Patent Grant
Lens hood
- Patent number 6,104,887
- Issue date Aug 15, 2000
- Asahi Kogaku Kogyo Kabushiki Kaisha
- Takuji Hamasaki
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Shutter/diaphragm apparatus
- Patent number 5,997,187
- Issue date Dec 7, 1999
- Asahi Kogaku Kogyo Kabushiki Kaisha
- Takuji Hamasaki
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Cam mechanism for lens barrel
- Patent number 5,867,740
- Issue date Feb 2, 1999
- Asahi Kogaku Kogyo Kabushiki Kaisha
- Takuji Hamasaki
- G02 - OPTICS
Information Patent Grant
Aperture system
- Patent number 5,809,357
- Issue date Sep 15, 1998
- Asahi Kogaku Kogyo Kabushiki Kaisha
- Takuji Hamasaki
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Zoom lens barrel
- Patent number 5,708,533
- Issue date Jan 13, 1998
- Asahi Kogaku Kogyo Kabushiki Kaisha
- Takuji Hamasaki
- G02 - OPTICS
Information Patent Grant
Focus adjusting apparatus of zoom lens
- Patent number 5,579,173
- Issue date Nov 26, 1996
- Asahi Kogaku Kogyo Kabushiki Kaisha
- Takuji Hamasaki
- G02 - OPTICS

Patents Applicationslast 30 patents

Information Patent Application
LENS BARREL, IMAGING DEVICE, AND DRIVING DEVICE
- Publication number 20240402458
- Publication date Dec 5, 2024
- Nikon Corporation
- Takuji HAMASAKI
- G02 - OPTICS
Information Patent Application
LENS BARREL AND IMAGING APPARATUS
- Publication number 20230176321
- Publication date Jun 8, 2023
- Nikon Corporation
- Takumi NAKANO
- G02 - OPTICS
Information Patent Application
LENS BARREL AND IMAGING DEVICE
- Publication number 20220128788
- Publication date Apr 28, 2022
- Nikon Corporation
- Satoshi YAMADA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
LENS BARREL AND IMAGING APPARATUS
- Publication number 20210311376
- Publication date Oct 7, 2021
- Nikon Corporation
- Kunihiko SHIMIZU
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
LENS BARREL AND CAMERA
- Publication number 20180113271
- Publication date Apr 26, 2018
- Nikon Corporation
- Kazuaki KAMIO
- G02 - OPTICS
Information Patent Application
OPTICAL SYSTEM AND OPTICAL DEVICE PROVIDED THEREWITH
- Publication number 20150226930
- Publication date Aug 13, 2015
- NIKON CORPORATION
- Hiroyuki ISHIGAMI
- G02 - OPTICS
Information Patent Application
INTERCHANGEABLE LENS INCORPORATING A LENS DRIVE MOTOR
- Publication number 20080253004
- Publication date Oct 16, 2008
- PENTAX CORPORATION
- Takuji Hamasaki
- G02 - OPTICS
Information Patent Application
ONE-WAY ROTATIONAL TRANSFER MECHANISM, AND ULTRASONIC ROTARY DRIVE...
- Publication number 20080238253
- Publication date Oct 2, 2008
- PENTAX CORPORATION
- Takuji HAMASAKI
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
ULTRASONIC ROTARY DRIVE DEVICE
- Publication number 20080067894
- Publication date Mar 20, 2008
- PENTAX CORPORATION
- Takuji HAMASAKI
- G02 - OPTICS
Information Patent Application
One-way rotational transfer mechanism
- Publication number 20060248969
- Publication date Nov 9, 2006
- PENTAX CORPORATION
- Shuzo Seo
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
LENS BODY TUBE
- Publication number 20060103954
- Publication date May 18, 2006
- PENTAX CORPORATION
- Takuji Hamasaki
- G02 - OPTICS
Information Patent Application
Lens body tube
- Publication number 20060092526
- Publication date May 4, 2006
- PENTAX CORPORATION
- Takuji Hamasaki
- G02 - OPTICS
Information Patent Application
Image-capturing apparatus and camera-shake compensation mechanism
- Publication number 20050264656
- Publication date Dec 1, 2005
- PENTAX Corporation of Tokyo
- Shuzo Seo
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
One-way rotational transfer mechanism
- Publication number 20050183917
- Publication date Aug 25, 2005
- PENTAX CORPORATION
- Takuji Hamasaki
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
One-way rotational transfer mechanism, and a lens barrel incorporat...
- Publication number 20050115358
- Publication date Jun 2, 2005
- PENTAX CORPORATION
- Takuji Hamasaki
- G02 - OPTICS
Information Patent Application
Lens barrel incorporating a one-way rotational transfer mechanism
- Publication number 20050094992
- Publication date May 5, 2005
- PENTAX CORPORATION
- Takuji Hamasaki
- G02 - OPTICS
Information Patent Application
Rotational transfer mechanism
- Publication number 20050087416
- Publication date Apr 28, 2005
- PENTAX CORPORATION
- Makoto Iikawa
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
One-way rotational transfer mechanism
- Publication number 20050072646
- Publication date Apr 7, 2005
- PENTAX CORPORATION
- Takuji Hamasaki
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
Power/manual lens barrel having a manual operating ring
- Publication number 20040105168
- Publication date Jun 3, 2004
- PENTAX CORPORATION
- Takuji Hamasaki
- G02 - OPTICS
Information Patent Application
One-way rotational transfer mechanism
- Publication number 20030230459
- Publication date Dec 18, 2003
- PENTAX CORPORATION
- Takuji Hamasaki
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
Varifocal lens barrel and a lens drive mechanism
- Publication number 20020114087
- Publication date Aug 22, 2002
- ASAHI KOGAKU KOGYO KABUSHIKI KAISHA
- Makoto Iikawa
- G02 - OPTICS
Information Patent Application
Lens barrel
- Publication number 20020105731
- Publication date Aug 8, 2002
- ASAHI KOGAKU KOGYO KABUSHIKI KAISHA
- Makoto Iikawa
- G02 - OPTICS
Information Patent Application
Method for molding cam ring with convex cams, molding die assembly,...
- Publication number 20020020937
- Publication date Feb 21, 2002
- ASAHI KOGAKU KOGYO KABUSHIKI KAISHA
- Makoto Iikawa
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Application
Device for adjusting the eccentricity of a lens in a frame
- Publication number 20010009071
- Publication date Jul 26, 2001
- ASAHI KOGAKU KOGYO KABUSHIKI KAISHA
- Makoto Iikawa
- G02 - OPTICS

Takuji HAMASAKI

Person

Patents Grantslast 30 patents

Lens barrel and camera

Optical system and optical device provided therewith

Interchangeable lens incorporating a lens drive motor

One-way rotational transfer mechanism, and ultrasonic rotary drive...

Image-capturing apparatus and camera-shake compensation mechanism

Ultrasonic rotary drive device

One-way rotational transfer mechanism

Rotational transfer mechanism

One-way rotational transfer mechanism

Lens body tube

One-way rotational transfer mechanism, and a lens barrel incorporat...

Lens barrel incorporating a one-way rotational transfer mechanism

Lens body tube

Power/manual lens barrel having a manual operating ring

One-way rotational transfer mechanism

Lens barrel

Varifocal lens barrel and a lens drive mechanism

Method for molding cam ring with convex cams, molding die assembly,...

Zoom lens system and adjusting method of same

Device for adjusting the eccentricity of a lens in a frame

Vari-focal lens

Lens hood

Floating lens barrel, lens barrel, and a common lens barrel system

Floating lens barrel, lens barrel, and a common lens barrel system

Lens hood

Shutter/diaphragm apparatus

Cam mechanism for lens barrel

Aperture system

Zoom lens barrel

Focus adjusting apparatus of zoom lens

Patents Applicationslast 30 patents

LENS BARREL, IMAGING DEVICE, AND DRIVING DEVICE

LENS BARREL AND IMAGING APPARATUS

LENS BARREL AND IMAGING DEVICE

LENS BARREL AND IMAGING APPARATUS

LENS BARREL AND CAMERA

OPTICAL SYSTEM AND OPTICAL DEVICE PROVIDED THEREWITH

INTERCHANGEABLE LENS INCORPORATING A LENS DRIVE MOTOR

ONE-WAY ROTATIONAL TRANSFER MECHANISM, AND ULTRASONIC ROTARY DRIVE...

ULTRASONIC ROTARY DRIVE DEVICE

One-way rotational transfer mechanism

LENS BODY TUBE

Lens body tube

Image-capturing apparatus and camera-shake compensation mechanism

One-way rotational transfer mechanism

One-way rotational transfer mechanism, and a lens barrel incorporat...

Lens barrel incorporating a one-way rotational transfer mechanism

Rotational transfer mechanism

One-way rotational transfer mechanism

Power/manual lens barrel having a manual operating ring

One-way rotational transfer mechanism

Varifocal lens barrel and a lens drive mechanism

Lens barrel

Method for molding cam ring with convex cams, molding die assembly,...

Device for adjusting the eccentricity of a lens in a frame