Keisuke Honda

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
4674333 Multi-color displaying ultrasonic microscopeExpiredSep 26, 85Jun 23, 87[G01N]
4644511 Display system for fish sonarExpiredJun 14, 85Feb 17, 87[G01S]
4492117 Ultrasonic nondestructive test apparatusExpiredNov 05, 82Jan 08, 85[G01N]
4491020 Ultrasonic microscopeExpiredNov 05, 82Jan 01, 85[G01N]
4425635 Fish sonarExpiredDec 16, 80Jan 10, 84[G01S]
4392144 Recording unitExpiredJan 07, 82Jul 05, 83[G01D]

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