Patent JPS60176002A successfully refreshed from Google Patents.
JPS60176002A
Expired / Lapsed
JP
⏱️ 0.0 years remaining
Manufacturing method of hologram diffraction grating
Assignee: Ricoh Co Ltd
•
Filing: 1984-02-22
•
Granted: —
•
Expires: 2004-02-22
Abstract
Abstract Translated from Japanese (57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。 (57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Inventors
- 👤 Koji Ujiie
- 👤 氏家 孝二
- 👤 Toru Oda
- 👤 徹 織田
- 👤 Makoto Nakamura
- 👤 誠 中村
Bibliographic Details
Application Number
—
Jurisdiction
JP
Data Source
google_patents
Last Synchronized
2026-11-04 16:22
CPC Classifications
G; G03; G03H; G03H1/00; G03H1/02; G03H1/0252; G03H1/024; G03H1/0244; G03H1/04; G03H1/18; G03H1/181; G03H1/0476; G03H2001/0482; G03H1/0493; G03H2001/0497; G03H2250/00; G03H2250/39; G03H2260/00; G03H2260/14; G03H2270/00; G03H2270/20; G03H2270/22
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.