Patent JPS5267219A successfully refreshed from Google Patents.
JPS5267219A
Expired / Lapsed
JP
⏱️ 0.0 years remaining
Pen touch type control circuit
Assignee: Fujitsu Ltd
•
Filing: 1975-12-01
•
Granted: —
•
Expires: 1995-12-01
Abstract
Abstract PURPOSE: The pen equipment continues to have output until normal signal is produced from pen through control circuit consisting of delay circuit and signal detection circuit, and stops the output production when normal signal is obtained. COPYRIGHT: (C)1977,JPO&Japio
Inventors
- 👤 Tadao Tatezuki
- 👤 Hideo Hagiwara
- 👤 Isamu Inada
- 👤 Motoyasu Nagashima
- 👤 Kiyomi Abe
- 👤 Yuki Miyamura
Bibliographic Details
Application Number
—
Jurisdiction
JP
Data Source
google_patents
Last Synchronized
2026-11-04 12:50
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)
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.