Patent JPS538159A successfully refreshed from Google Patents.
JPS538159A
Expired / Lapsed
JP
⏱️ 0.0 years remaining
Color information selection method
Assignee: Ricoh Co Ltd
•
Filing: 1976-07-12
•
Granted: —
•
Expires: 1996-07-12
Abstract
Abstract PURPOSE: To discriminate and recognize colors by reading pictures without using a color filter and using a complementary filter for the color desired to be discriminated and obtaining differential signals. COPYRIGHT: (C)1978,JPO&Japio
Inventors
- 👤 Fusakichi Okochi
- 👤 Hiroyoshi Funato
- 👤 Toshiyuki Iguchi
- 👤 Mitsuki Sagane
- 👤 Motoaki Kawazu
Bibliographic Details
Application Number
—
Jurisdiction
JP
Data Source
google_patents
Last Synchronized
2026-10-27 09:05
CPC Classifications
—
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.