Assignee
YAMADA SHADOWLESS LAMP CO
JP·7 granted patents·292 citations·filing 1975–1990
Top patents by PatentIndex Score
7 records- 0191US4025777AClinical illumination apparatusYAMADA SHADOWLESS LAMP CO·Filed 1975·Granted May 24, 1977·74 cites·11 claims
- 0287US4316237ALighting fixture for use in medical operations and therapeutic treatmentYAMADA SHADOWLESS LAMP CO·Filed 1980·Granted Feb 16, 1982·70 cites·7 claims
- 0381US4639838AShadowless lighting equipment for medical useYAMADA SHADOWLESS LAMP CO·Filed 1985·Granted Jan 27, 1987·49 cites·10 claims
- 0478US5068767AAutomatic focus position adjusting unit for use in shadowless lighting deviceYAMADA SHADOWLESS LAMP CO·Filed 1990·Granted Nov 26, 1991·55 cites·1 claims
- 0565US4025778AFocusing device for sealed type multi-lamp for obtaining shadowless illuminationYAMADA SHADOWLESS LAMP CO·Filed 1975·Granted May 24, 1977·23 cites·8 claims
- 0654US4130858ALamp-moving deviceYAMADA SHADOWLESS LAMP CO·Filed 1977·Granted Dec 19, 1978·16 cites·8 claims
- 0751US4384315APhotographic flash device for use with a shadowless lamp for surgical operationYAMADA SHADOWLESS LAMP CO·Filed 1981·Granted May 17, 1983·5 cites·8 claims
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