Takao Oosawa

Follow

Person

Niiza, JP

People

Patents Grantslast 30 patents

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
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
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