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KEIWA KK

Overview
  • Total Patents
    11
About

KEIWA KK has a total of 11 patent applications. Its first patent ever was published in 1997. It filed its patents most often in Japan, Hong Kong and China. Its main competitors in its focus markets optics, electrical machinery and energy and macromolecular chemistry and polymers are SHANGHAI XIANGLONG ELECTRONIC TECHNOLOGY CO LTD, NITTO JUSHI KOGYO KABUSHIKI KA and YAAKOV AMITAI.

Patent filings in countries

World map showing KEIWA KKs patent filings in countries
# Country Total Patents
#1 Japan 8
#2 Hong Kong 2
#3 China 1

Patent filings per year

Chart showing KEIWA KKs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Wada Takao 2
#2 Nishinaga Kiyoaki 2
#3 Hitoshi Masaki 1
#4 Miyamoto Masaaki 1
#5 Nishio Kenji 1
#6 Masakazu Uekita 1
#7 Akira Furuta 1
#8 Takase Fumito 1
#9 Yutaka Kazao 1
#10 Tsumura Kazuhiko 1

Latest patents

Publication Filing date Title
JP2002136966A Water purifier
JP2002066544A Water purifier, cartridge for the same and ionizing device for water purifier
JPH11217796A Moisture-proof paper
JPH11235745A Production of air permeble sheet material, and air permeable sheet material
JPH11227119A Decorative sheet and its manufacture
JPH11227111A Laminate paper and its reuse method
JPH11212089A Light beam control sheet
JPH11179872A Manufacture of laminate with protrusion and recess surface, and laminate