Inventor

TANAKA HISAKATSU

JP9 patents

Patents

9 patents

US5473148ADec 5, 1995

Barcode symbol reading system capable of shortening time for reading and decoding

OLYMPUS OPTICAL CO56 citations94

US5631457AMay 20, 1997

Two-dimensional symbol data read apparatus

OLYMPUS OPTICAL CO39 citations92

US5430283AJul 4, 1995

Bar-code symbol reading apparatus

OLYMPUS OPTICAL CO37 citations91

US5347114ASep 13, 1994

Bar code symbol reading apparatus

OLYMPUS OPTICAL CO49 citations91

US5365048ANov 15, 1994

Bar code symbol reading apparatus with double-reading preventing function

OLYMPUS OPTICAL CO81 citations90

US4885458ADec 5, 1989

Card-form recording medium and data recording device therefor

OLYMPUS OPTICAL CO20 citations81

US4894817AJan 16, 1990

Method of writing data on optical card by projecting thereon intensity modulated light beam

OLYMPUS OPTICAL CO16 citations73

US5113061AMay 12, 1992

Optical card having an identifier for identifying track construction and apparatus for writing and/or reading data on and/or from the optical card

OLYMPUS OPTICAL CO15 citations72

US5383170AJan 17, 1995

Optical card recording/reproducing apparatus wherein a data process is made during an access operation

OLYMPUS OPTICAL CO4 citations62