Sumitomo Cement Co., Ltd.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
F27B FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS222
 
  
 
C04B LIME; MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS 167
 
  
 
C08K USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES AS COMPOUNDING INGREDIENTS 1101
 
  
 
G01N INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES 1205
 
  
 
G02B OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS 1204
 
  
 
G02F DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH IS MODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THE DEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY, COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g. SWITCHING, GATING, MODULATING OR DEMODULATING; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; FREQUENCY-CHANGING; NON-LINEAR OPTICS; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS 1132

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
5681885 Coating material for antistatic high refractive index film formationJul 18, 96Oct 28, 97[C08K]
5536167 Method and apparatus for sintering cement clinkerFeb 25, 94Jul 16, 96[F27B]
5526448 Optical waveguide modulator having a reduced D.C. driftSep 30, 94Jun 11, 96[G02B, G02F]
5478234 Apparatus for manufacturing cement clinkerDec 27, 93Dec 26, 95[F27B]
5374989 Apparatus for identifying an object utilizing a tracking means and an identification beamOct 29, 93Dec 20, 94[G01N]
5173117 Additives for roller compacted concrete pavementNov 21, 91Dec 22, 92[C04B]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5619596 Method and apparatus for optical pattern recognitionExpiredOct 06, 93Apr 08, 97[G06F, G06K]
5600485 Optical pattern recognition system method of ferroelectric liquid crystal spatial light modulatorExpiredJul 28, 94Feb 04, 97[G02B, G06F, G06K]
5359690 Cutting method and apparatus for removing a secondary coating layer from a jacketed optical fiberExpiredAug 17, 93Oct 25, 94[B26D, G02B, H02G, B26F]
5248486 Device, agent and process for medical waste sterilizationExpiredNov 30, 92Sep 28, 93[C09K, F24J, A61L]
5239595 Optical method for identifying or recognizing a pattern to be identifiedExpiredNov 20, 90Aug 24, 93[G06K]
5216541 Optical associative identifier with real time joint transform correlatorExpiredMay 08, 90Jun 01, 93[G02B, G06K]
5214345 Ultraviolet ray-shielding agent and tubeExpiredJul 15, 91May 25, 93[H01J]
5211661 Artificial living body composite materialExpiredAug 22, 90May 18, 93[A61F]
5141510 Structure of artificial bone material for use in implantationExpiredFeb 14, 90Aug 25, 92[A61F, A61C]
5094985 Sintered silicon carbide body with high thermal conductivity and process of producing the sameExpiredNov 06, 89Mar 10, 92[C04B]
5093039 Highly pure sintered carbide with high electric conductivity and process of producing the sameExpiredNov 06, 89Mar 03, 92[C04B, H01B]
5059388 Process for manufacturing sintered bodiesExpiredOct 04, 89Oct 22, 91[C04B]
5051650 Ultraviolet-suppressed light source, coating agent used in the same, and method for manufacturing the sameExpiredFeb 14, 90Sep 24, 91[H01J]
4996177 Sintered alumina article with high flexural strength and process for producing sameExpiredJul 22, 88Feb 26, 91[C04B]
4976806 Bonding composition for ceramics comprising metal oxide melt and method for bonding ceramicsExpiredJul 29, 87Dec 11, 90[C09J]
4963145 Porous ceramic material and processes for preparing sameExpiredMar 20, 89Oct 16, 90[A61F]
4952454 Bonding composition for ceramics comprising metal oxide melt and method for bonding ceramicsExpiredJun 16, 88Aug 28, 90[B32B]
4844340 Method and apparatus for spraying an inorganic hydraulic material composition containing reinforcing short fibersExpiredJul 21, 87Jul 04, 89[E04G]
4713115 Method for demolishing durable structuresExpiredMay 23, 85Dec 15, 87[C04B]
4654314 Porous ceramic material and processes for preparing sameExpiredJul 06, 84Mar 31, 87[C04B]

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