Makoto Iikawa

Person

Tokyo, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Optical system and imaging apparatus
- Patent number 12,135,464
- Issue date Nov 5, 2024
- Ricoh Company, Ltd.
- Yuji Toriumi
- G02 - OPTICS
Information Patent Grant
Image-sensor fixing structure
- Patent number 11,445,095
- Issue date Sep 13, 2022
- Ricoh Company, Ltd.
- Takaaki Fujiya
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical system and imaging apparatus
- Patent number 10,942,343
- Issue date Mar 9, 2021
- Ricoh Company, Ltd.
- Yuji Toriumi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Joint structure
- Patent number 10,852,503
- Issue date Dec 1, 2020
- Ricoh Company, Ltd.
- Yuji Toriumi
- G02 - OPTICS
Information Patent Grant
Camera body, lens barrel and lens-interchangeable camera
- Patent number 9,310,669
- Issue date Apr 12, 2016
- Ricoh Imaging Company, Ltd.
- Makoto Iikawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Camera body, lens barrel and lens-interchangeable camera
- Patent number 9,197,801
- Issue date Nov 24, 2015
- Ricoh Imaging Company, Ltd.
- Makoto Iikawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Camera body
- Patent number 9,134,590
- Issue date Sep 15, 2015
- Ricoh Imaging Company, Ltd.
- Makoto Iikawa
- G02 - OPTICS
Information Patent Grant
Gear mechanism
- Patent number 9,103,967
- Issue date Aug 11, 2015
- Pentax Ricoh Imaging Company, Ltd.
- Makoto Iikawa
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Varifocal lens barrel
- Patent number 8,976,460
- Issue date Mar 10, 2015
- Pentax Ricoh Imaging Company, Ltd.
- Makoto Iikawa
- G02 - OPTICS
Information Patent Grant
Water-resistant structure of a lens barrel
- Patent number 8,508,873
- Issue date Aug 13, 2013
- Pentax Ricoh Imaging Company, Ltd.
- Makoto Iikawa
- G02 - OPTICS
Information Patent Grant
Interchangeable lens, and a camera system including an interchangea...
- Patent number 7,756,405
- Issue date Jul 13, 2010
- Hoya Corporation
- Makoto Iikawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Lens alignment apparatus
- Patent number 7,639,439
- Issue date Dec 29, 2009
- Hoya Corporation
- Makoto Iikawa
- G02 - OPTICS
Information Patent Grant
Fixing method for resin lens
- Patent number 7,468,848
- Issue date Dec 23, 2008
- Hoya Corporation
- Kunihiko Shimizu
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Camera system incorporating a seamless lens-drive switching mechanism
- Patent number 7,454,135
- Issue date Nov 18, 2008
- Hoya Corporation
- Masahiro Nakata
- G02 - OPTICS
Information Patent Grant
Lens alignment apparatus
- Patent number 7,408,726
- Issue date Aug 5, 2008
- Hoya Corporation
- Makoto Iikawa
- G02 - OPTICS
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
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
Bayonet coupling for axially mounting one of two relatively rotatab...
- Patent number 7,004,672
- Issue date Feb 28, 2006
- PENTAX Corporation
- Makoto Iikawa
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information Patent Grant
Hot crimping structure and method for fixing a lens to a lens frame...
- Patent number 6,888,690
- Issue date May 3, 2005
- PENTAX Corporation
- Makoto Iikawa
- G02 - OPTICS
Information Patent Grant
Cam mechanism
- Patent number 6,876,499
- Issue date Apr 5, 2005
- PENTAX Corporation
- Makoto Iikawa
- G02 - OPTICS
Information Patent Grant
Cam rib support structure
- Patent number 6,867,926
- Issue date Mar 15, 2005
- PENTAX Corporation
- Makoto Iikawa
- G02 - OPTICS
Information Patent Grant
Lens barrel
- Patent number 6,829,103
- Issue date Dec 7, 2004
- PENTAX Corporation
- Tomoaki Kobayashi
- G02 - OPTICS
Information Patent Grant
Soft focus lens barrel
- Patent number 6,778,332
- Issue date Aug 17, 2004
- PENTAX Corporation
- Makoto Iikawa
- G02 - OPTICS
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
Brush encoder with resilient contact strips
- Patent number 6,552,671
- Issue date Apr 22, 2003
- PENTAX Corporation
- Makoto Iikawa
- G01 - MEASURING TESTING
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

Patents Applicationslast 30 patents

Information Patent Application
IMAGE-SENSOR FIXING STRUCTURE
- Publication number 20210006694
- Publication date Jan 7, 2021
- Takaaki FUJIYA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OPTICAL SYSTEM AND IMAGING APPARATUS
- Publication number 20200348481
- Publication date Nov 5, 2020
- Yuji TORIUMI
- G02 - OPTICS
Information Patent Application
OPTICAL SYSTEM AND IMAGING APPARATUS
- Publication number 20190293913
- Publication date Sep 26, 2019
- RICOH COMPANY, LTD.
- Yuji TORIUMI
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
JOINT STRUCTURE
- Publication number 20190293900
- Publication date Sep 26, 2019
- RICOH COMPANY, LTD.
- Yuji TORIUMI
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
CAMERA BODY, LENS BARREL AND LENS-INTERCHANGEABLE CAMERA
- Publication number 20140119721
- Publication date May 1, 2014
- RICOH IMAGING COMPANY, LTD.
- Makoto Iikawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
CAMERA BODY
- Publication number 20140119720
- Publication date May 1, 2014
- RICOH IMAGING COMPANY, LTD.
- Makoto Iikawa
- G02 - OPTICS
Information Patent Application
CAMERA BODY, LENS BARREL AND LENS-INTERCHANGEABLE CAMERA
- Publication number 20140111686
- Publication date Apr 24, 2014
- RICOH IMAGING COMPANY, LTD.
- Makoto Iikawa
- G02 - OPTICS
Information Patent Application
VARIFOCAL LENS BARREL
- Publication number 20120075720
- Publication date Mar 29, 2012
- HOYA CORPORATION
- Makoto IIKAWA
- G02 - OPTICS
Information Patent Application
GEAR MECHANISM
- Publication number 20120075731
- Publication date Mar 29, 2012
- HOYA CORPORATION
- Makoto IIKAWA
- G02 - OPTICS
Information Patent Application
WATER-RESISTANT STRUCTURE OF A LENS BARREL
- Publication number 20100214679
- Publication date Aug 26, 2010
- HOYA CORPORATION
- Makoto IIKAWA
- G02 - OPTICS
Information Patent Application
LENS ALIGNMENT APPARATUS
- Publication number 20080259472
- Publication date Oct 23, 2008
- HOYA CORPORATION
- Makoto IIKAWA
- G02 - OPTICS
Information Patent Application
INTERCHANGEABLE LENS, AND A CAMERA SYSTEM INCLUDING AN INTERCHANGEA...
- Publication number 20080075454
- Publication date Mar 27, 2008
- PENTAX CORPORATION
- Makoto Iikawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
FIXING METHOD FOR RESIN LENS
- Publication number 20070258155
- Publication date Nov 8, 2007
- PENTAX CORPORATION
- Kunihiko SHIMIZU
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Application
LENS ALIGNMENT APPARATUS
- Publication number 20070002468
- Publication date Jan 4, 2007
- PENTAX CORPORATION
- Makoto IIKAWA
- G02 - OPTICS
Information Patent Application
Camera system incorporating a seamless lens-drive switching mechanism
- Publication number 20060104624
- Publication date May 18, 2006
- PENTAX CORPORATION
- Masahiro Nakata
- G02 - OPTICS
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
Bayonet coupling for axially mounting one of two relatively rotatab...
- Publication number 20040136777
- Publication date Jul 15, 2004
- PENTAX CORPORATION
- Makoto Iikawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Hot crimping structure and method for fixing a lens to a lens frame...
- Publication number 20040136090
- Publication date Jul 15, 2004
- PENTAX CORPORATION
- Makoto Iikawa
- G02 - OPTICS
Information Patent Application
Cam mechanism
- Publication number 20040090682
- Publication date May 13, 2004
- PENTAX CORPORATION
- Makoto Iikawa
- G02 - OPTICS
Information Patent Application
Cam rib support structure
- Publication number 20040090681
- Publication date May 13, 2004
- PENTAX CORPORATION
- Makoto Iikawa
- G02 - OPTICS
Information Patent Application
Lens barrel
- Publication number 20040061958
- Publication date Apr 1, 2004
- PENTAX CORPORATION
- Tomoaki Kobayashi
- G02 - OPTICS
Information Patent Application
Soft focus lens barrel
- Publication number 20040012862
- Publication date Jan 22, 2004
- PENTAX CORPORATION
- Makoto Iikawa
- G02 - OPTICS
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
Brush encoder
- Publication number 20020080049
- Publication date Jun 27, 2002
- ASAHI KOGAKU KOGYO KABUSHIKI KAISHA
- Makoto Iikawa
- G01 - MEASURING TESTING
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
Photographic lens recognition system for a camera body
- Publication number 20020012539
- Publication date Jan 31, 2002
- OSAMU SATO
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Makoto Iikawa

Person

Patents Grantslast 30 patents

Optical system and imaging apparatus

Image-sensor fixing structure

Optical system and imaging apparatus

Joint structure

Camera body, lens barrel and lens-interchangeable camera

Camera body, lens barrel and lens-interchangeable camera

Camera body

Gear mechanism

Varifocal lens barrel

Water-resistant structure of a lens barrel

Interchangeable lens, and a camera system including an interchangea...

Lens alignment apparatus

Fixing method for resin lens

Camera system incorporating a seamless lens-drive switching mechanism

Lens alignment apparatus

Rotational transfer 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

Bayonet coupling for axially mounting one of two relatively rotatab...

Hot crimping structure and method for fixing a lens to a lens frame...

Cam mechanism

Cam rib support structure

Lens barrel

Soft focus lens barrel

Lens barrel

Varifocal lens barrel and a lens drive mechanism

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

Brush encoder with resilient contact strips

Device for adjusting the eccentricity of a lens in a frame

Patents Applicationslast 30 patents

IMAGE-SENSOR FIXING STRUCTURE

OPTICAL SYSTEM AND IMAGING APPARATUS

OPTICAL SYSTEM AND IMAGING APPARATUS

JOINT STRUCTURE

CAMERA BODY, LENS BARREL AND LENS-INTERCHANGEABLE CAMERA

CAMERA BODY

CAMERA BODY, LENS BARREL AND LENS-INTERCHANGEABLE CAMERA

VARIFOCAL LENS BARREL

GEAR MECHANISM

WATER-RESISTANT STRUCTURE OF A LENS BARREL

LENS ALIGNMENT APPARATUS

INTERCHANGEABLE LENS, AND A CAMERA SYSTEM INCLUDING AN INTERCHANGEA...

FIXING METHOD FOR RESIN LENS

LENS ALIGNMENT APPARATUS

Camera system incorporating a seamless lens-drive switching 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

Bayonet coupling for axially mounting one of two relatively rotatab...

Hot crimping structure and method for fixing a lens to a lens frame...

Cam mechanism

Cam rib support structure

Lens barrel

Soft focus lens barrel

Varifocal lens barrel and a lens drive mechanism

Lens barrel

Brush encoder

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

Photographic lens recognition system for a camera body