NIIHARA, KOICHI

Patent Owner

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
C04B LIME; MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS 266

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
5418196 Sintered composite boron carbide body and production process thereofDec 06, 91May 23, 95[C04B]
5389590 Method of fabricating a sintered ceramic compositeFeb 07, 94Feb 14, 95[C04B]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5637269 Process for forming a sintered composite boron carbide bodyExpiredDec 12, 95Jun 10, 97[B28B]
5173459 Si.sub.3 N.sub.4 -A1.sub.2 O.sub.3 composite sintered bodies and method of producing the sameExpiredJul 23, 90Dec 22, 92[C04B]

Top Inventors for This Owner

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