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SUMITOMO CEMENT CO

Overview
  • Total Patents
    1,067
About

SUMITOMO CEMENT CO has a total of 1,067 patent applications. Its first patent ever was published in 1974. It filed its patents most often in Japan, United States and EPO (European Patent Office). Its main competitors in its focus markets materials and metallurgy, environmental technology and medical technology are MCGOWAN KENNETH A, SHIMODA GIJUTSU KENKYUSHO KK and SECIL COMPANHIA GERAL DE CAL E CIMENTO S A.

Patent filings per year

Chart showing SUMITOMO CEMENT COs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Tanaka Hirofumi 98
#2 Shigeru Keijiro 75
#3 Oku Takashi 66
#4 Yokota Norio 55
#5 Sakai Kazutomi 53
#6 Uchida Kiyohiko 52
#7 Shibuya Kiyouichi 51
#8 Takagi Shigeharu 50
#9 Satou Masao 47
#10 Kubota Yoshifumi 47

Latest patents

Publication Filing date Title
CA2133300A1 Optical Waveguide Device
CN1102885A Antireflection film
WO9427442A1 Antibacterial mildewproof glaze composition for ceramic products
EP0585819A1 Anti-static/antireflection coating for a cathode ray tube
US5359690A Cutting method and apparatus for removing a secondary coating layer from a jacketed optical fiber
JPH0680459A Cement slurry and cement-base grouting material
JPH06100855A Cement slurry and cement grout
JPH06344489A Coating for forming antistatic high refractive index film, transparent laminate having antistatic antireflective film and cathode rays tube
JPH06345504A Hardened matter of hydraulic composition having improved compressive strength, tensile strength, bending strength and flow property or structure of hardened matter of hydraulic composition
JPH06340457A Shape separation of aggregate and aggregate assemblage subjected to specific shape separation
JPH06340456A Shape separation of hydraulic composition particle, hydraulic composition particle aggregate, cement mortar, ready mixed cement concrete, cured body of cement concrete and cured body structure of cement concrete
JPH06337385A Optical waveguide module
JPH06340513A Antibacterial and antifungal glaze composition
JPH06331594A Method for sealing cell part of oxygen sensor
JPH06329989A Ultraviolet-absorbing coating fluid and coating glass
JPH06329453A Production of cement
JPH06329483A Method for curing mortal and concrete in magnetic field
JPH06322884A Arrangement holding block of prearranged decorative material
JPH06317000A Prefabricated form pc panel method of natural stone
JPH06316439A Heat ray shielding glass plate and production thereof