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SEIKO KAGAKU KOGYO CO LTD

Overview
  • Total Patents
    195
About

SEIKO KAGAKU KOGYO CO LTD has a total of 195 patent applications. Its first patent ever was published in 1969. It filed its patents most often in Japan, United States and EPO (European Patent Office). Its main competitors in its focus markets textiles and paper, organic fine chemistry and chemical engineering are LOEBBECKE GEORG, ZAGUDAEV ADOLF M and MONIN ALFRED.

Patent filings per year

Chart showing SEIKO KAGAKU KOGYO CO LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Yoshioka Shigehiko 92
#2 Yamada Hideto 63
#3 Hashimoto Ken 49
#4 Adachi Yoshio 36
#5 Goto Kimihiko 24
#6 Sugiyama Iwao 23
#7 Taniguchi Masahide 20
#8 Okada Kaoru 20
#9 Ishida Hitoshi 18
#10 Takeuchi Kunio 17

Latest patents

Publication Filing date Title
JP2004218118A Pitch-controlling agent
JP2003221796A Additive for making paper and method of making paper
JP2003027394A Adding sizing agent for making paper, method for producing the sizing agent and method for making paper with the sizing agent
JP2002332450A Composition for surface coating and method for producing the same
JP2002308994A Method for producing wax emulsion
JP2002285493A Surface-sizing agent for making paper and method for producing the same
JP2002284804A Aqueous emulsion and method of its preparation method
JP2002004192A Method for papermaking
JP2001270750A Cement admixture and method for producing cement hardened body using the same
JP2001270752A Cement admixture and method for producing cement hardened body using the same
JP2001270749A Cement admixture and method for producing cement hardened body using the same
JP2001254291A Neutral sizing agent for paper making and method for sizing paper using the agent
JP2001234495A Agent for improving paper cutting suitability and method for producing coated paper using the agent
JP2001232932A Surface sizing agent for ink jet recording paper, and ink jet recording paper
JP2001200199A Surface coating agent and ink-jet recording sheet produced by using the agent
JP2001098208A Humidity absorptive/desorptive coating material composition and method of forming humidity absorptive/ desorptive coating film by using the same
JP2001020198A Papermaking additive
JP2000328490A Sizing agent for making paper and method for sizing paper with the sizing agent
JP2000314094A Surface coating mixture for paper and printing paper using the same
JP2000248490A Rosin-based emulsion sizing agent and sizing of paper using the same