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.
# | Industry | |
---|---|---|
#1 | Optics | |
#2 | Electrical machinery and energy | |
#3 | Macromolecular chemistry and polymers | |
#4 | Machines |
# | Technology | |
---|---|---|
#1 | Optical systems | |
#2 | Compounding processes | |
#3 | Nonlinear optics | |
#4 | Macromolecular compounds compositions | |
#5 | Lighting device details |
# | 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 |
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 |