JPS5269345A
Expired / Lapsed
JP
⏱️ 0.0 years remaining
Automatic detector of number and direction of revolution
Assignee: Fujitsu Ltd
•
Filing: 1975-12-05
•
Granted: —
•
Expires: 1995-12-05
Abstract
Abstract PURPOSE:To simultaneously detect the number and direction of revolution of a light shielding disc by providing it with a notch undergoing a gradual change in dimension in the radial direction and disposing a light receiving element at a position where light passing through the notch can be received.
Inventors
- 👤 Junshiro Sugihara
Bibliographic Details
Application Number
—
Jurisdiction
JP
Data Source
google_patents
Last Synchronized
2026-11-10 02:35
CPC Classifications
G; G01; G01P; G01P13/00; G01P13/02; G01P13/04; G01P13/045
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.