Masayuki Ohki

Person

Kodaira, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Projection display system with two reflecting mirrors
- Patent number 9,022,581
- Issue date May 5, 2015
- Hitachi Maxell, Ltd.
- Koji Hirata
- G02 - OPTICS
Information Patent Grant
Projection display system including lens group and reflecting mirror
- Patent number 8,313,199
- Issue date Nov 20, 2012
- Hitachi, Ltd.
- Koji Hirata
- G02 - OPTICS
Information Patent Grant
Telephone used for electronic money card transaction and method of...
- Patent number 6,339,638
- Issue date Jan 15, 2002
- Hitachi, Ltd.
- Masayuki Ohki
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Video camera with digital video disc player
- Patent number D446799
- Issue date Aug 21, 2001
- Hitachi, Ltd.
- Masayuki Ohki
- D16 - Photography and optical equipment
Information Patent Grant
IC card reader and writer
- Patent number D437851
- Issue date Feb 20, 2001
- Hitachi, Ltd.
- Satoko Kojima
- D14 - Recording, communication, or information retrieval equipment
Information Patent Grant
IC card reader and writer
- Patent number D423471
- Issue date Apr 25, 2000
- Hitachi, Ltd.
- Takeshi Minemoto
- D14 - Recording, communication, or information retrieval equipment
Information Patent Grant
Electronic value processing device
- Patent number D423037
- Issue date Apr 18, 2000
- Hitachi, Ltd.
- Masayuki Ohki
- D18 - Printing and office machinery
Information Patent Grant
Holding apparatus for a plurality of IC cards facilitating transact...
- Patent number 6,042,002
- Issue date Mar 28, 2000
- Hitachi, Ltd.
- Masayuki Ohki
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Card holder-type balance reader
- Patent number 6,016,954
- Issue date Jan 25, 2000
- Hitachi, Ltd.
- Yuhei Abe
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
IC card reader/writer and method of operation thereof
- Patent number 6,016,957
- Issue date Jan 25, 2000
- Hitachi, Ltd.
- Masayuki Ohki
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
IC card reader/writer and method of operation thereof
- Patent number 6,000,607
- Issue date Dec 14, 1999
- Hitachi, Ltd.
- Masayuki Ohki
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Depositing, withdrawal, balance check, exchange and transfer of ele...
- Patent number 5,952,639
- Issue date Sep 14, 1999
- Hitachi, Ltd.
- Masayuki Ohki
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Electronic wallet and method for operating the same
- Patent number 5,945,652
- Issue date Aug 31, 1999
- Hitachi, Ltd.
- Masayuki Ohki
- G07 - CHECKING-DEVICES
Information Patent Grant
Portable card reader/writer
- Patent number 5,929,427
- Issue date Jul 27, 1999
- Hitachi, Ltd.
- Kaoru Harada
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Video camera with combined video tape recorder
- Patent number D409214
- Issue date May 4, 1999
- Hitachi, Ltd.
- Masayuki Ohki
- D16 - Photography and optical equipment
Information Patent Grant
Electronic wallet
- Patent number D409229
- Issue date May 4, 1999
- Hitachi, Ltd.
- Takashi Matsubara
- D18 - Printing and office machinery
Information Patent Grant
Terminal for portable IC card
- Patent number 5,895,903
- Issue date Apr 20, 1999
- Hitachi, Ltd.
- Yuhei Abe
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Electronic wallet
- Patent number D408438
- Issue date Apr 20, 1999
- Hitachi, Ltd.
- Takashi Matsubara
- D18 - Printing and office machinery
Information Patent Grant
Smart card reader/writer
- Patent number D393835
- Issue date Apr 28, 1998
- Hitachi, Ltd.
- Masayuki Ohki
- D14 - Recording, communication, or information retrieval equipment
Information Patent Grant
Electronic value automated teller machine
- Patent number D393527
- Issue date Apr 14, 1998
- Hitachi, Ltd.
- Masayuki Ohki
- D99 -
Information Patent Grant
Electronic value processing device
- Patent number D393277
- Issue date Apr 7, 1998
- Hitachi, Ltd.
- Masayuki Ohki
- D18 - Printing and office machinery

Patents Applicationslast 30 patents

Information Patent Application
Projection Display System
- Publication number 20130077063
- Publication date Mar 28, 2013
- Koji Hirata
- G02 - OPTICS
Information Patent Application
PROJECTION DISPLAY SYSTEM
- Publication number 20080212038
- Publication date Sep 4, 2008
- Koji Hirata
- G02 - OPTICS

Masayuki Ohki

Person

Patents Grantslast 30 patents

Projection display system with two reflecting mirrors

Projection display system including lens group and reflecting mirror

Telephone used for electronic money card transaction and method of...

Video camera with digital video disc player

IC card reader and writer

IC card reader and writer

Electronic value processing device

Holding apparatus for a plurality of IC cards facilitating transact...

Card holder-type balance reader

IC card reader/writer and method of operation thereof

IC card reader/writer and method of operation thereof

Depositing, withdrawal, balance check, exchange and transfer of ele...

Electronic wallet and method for operating the same

Portable card reader/writer

Video camera with combined video tape recorder

Electronic wallet

Terminal for portable IC card

Electronic wallet

Smart card reader/writer

Electronic value automated teller machine

Electronic value processing device

Patents Applicationslast 30 patents

Projection Display System

PROJECTION DISPLAY SYSTEM