Chichibu Cement Co., Ltd.

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5453419 Xenopus laevis bone morphogenetic proteins and use thereofExpiredApr 30, 93Sep 26, 95[A61K, C07K]
5369067 Composite substrates and their productionExpiredFeb 17, 93Nov 29, 94[C04B]
5330046 Ceramic conveyor beltExpiredAug 10, 93Jul 19, 94[B65G]
5229093 Method for making mullite whiskers using hydrofluoric acidExpiredJun 04, 92Jul 20, 93[C03C, C04B, C30B]
5194420 Oxide super conductorsExpiredMay 07, 90Mar 16, 93[B32B]
5139602 Apparatus for producing paving blocksExpiredFeb 25, 91Aug 18, 92[B29C]
5051023 Fracture-free layered paving blocksExpiredJan 03, 91Sep 24, 91[E04C, E01C]
5045514 Sol-gel method for making composite mullite/cordierite ceramicsExpiredAug 30, 90Sep 03, 91[C04B]
4995932 Method for production of paving blocksExpiredMar 14, 89Feb 26, 91[B29C]
4851155 Solidification processing apparatus for radioactive waste materialsExpiredFeb 01, 88Jul 25, 89[G21F, B65B]
4759711 Calcination apparatus for use in fluidized-bed burning installation for powdery raw materialExpiredJan 22, 88Jul 26, 88[F27B]
4717337 Method for producing white cement clinkerExpiredJan 27, 87Jan 05, 88[F27B, F26B]
4594209 Process for the preparation of voltage non-linearity type resistorsExpiredMar 22, 84Jun 10, 86[C04B]
4573908 Method and apparatus for producing white cement clinkerExpiredJun 11, 85Mar 04, 86[F27B, F27D]
4500286 Primary air supply unit of rotary kilnExpiredJun 23, 83Feb 19, 85[F27B, F27D]
D273004 Wheel coverExpiredDec 30, 81Mar 13, 84[]
4409030 Material for destroying concrete structuresExpiredFeb 05, 82Oct 11, 83[C04B]
4407652 Apparatus for calcining raw materials in the form of powder or particlesExpiredNov 30, 81Oct 04, 83[F27B]
4404031 Process for producing hydraulic cementsExpiredJan 04, 82Sep 13, 83[C04B]
4344062 Humidity sensor elementExpiredJun 03, 80Aug 10, 82[H01L]

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