Koyama; Masaharu

Patent Applications and Registrations

Patent applications and USPTO patent grants for Koyama; Masaharu.The latest application filed is for "method for making an anti-counterfeit latent image formation object for bills, credit cards, etc.".

Company Profile

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Koyama; Masaharu - Tokyo JP
Koyama; Masaharu - Itami JP
Koyama; Masaharu - Mobara JP

*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.

Patent Activity

Patent	Date
Method for making an anti-counterfeit latent image formation object for bills, credit cards, etc. Grant 5,582,103 - Tanaka , et al. December 10, 1	1996-12-10
Anti-counterfeit latent image formation object for bills, credit cards, etc. and method for making the same Grant 5,437,897 - Tanaka , et al. August 1, 1	1995-08-01
Amplifier circuit and method of controlling output power thereof Grant 4,910,478 - Koyama March 20, 1	1990-03-20
Multi-layer liquid crystal panel with sealing members and retainers in registration Grant 4,458,987 - Sasaki , et al. July 10, 1	1984-07-10
Liquid crystal display element having non-display electrode arrangement Grant 4,412,214 - Tanaka , et al. October 25, 1	1983-10-25
Liquid crystal display element and production thereof Grant 4,341,445 - Matsuyama , et al. July 27, 1	1982-07-27
Liquid crystal display apparatus Grant 4,127,321 - Koyama , et al. November 28, 1	1978-11-28
Method of manufacturing liquid crystal display devices Grant 4,070,749 - Misono , et al. January 31, 1	1978-01-31
Field effect type liquid crystal display elements provided with polarizing plates Grant 4,043,639 - Matsuyama , et al. August 23, 1	1977-08-23
Liquid crystal display cells Grant 4,037,930 - Matsuyama , et al. July 26, 1	1977-07-26
Multiple-digit Display Device And Method Of Manufacturing The Same Grant 3,873,171 - Miyamoto , et al. March 25, 1	1975-03-25
Multiple Digit Display Device And Method Of Manufacturing Same Grant 3,873,169 - Miyamoto , et al. March 25, 1	1975-03-25
Method For Manufacturing Thin Plate Glass Grant 3,839,113 - Yoshida , et al. October 1, 1	1974-10-01

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