EY

Eiichi Yajima

HO Hoya: 12 patents #85 of 1,290Top 7%
NI Nissan Chemical Industries: 1 patents #655 of 1,150Top 60%
Overall (All Time): #417,999 of 4,157,543Top 15%
12
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
RE46357 Photochromic film, photochromic lens comprising the same, and method of manufacturing photochromic lens Osamu Asai, Hiroshi Ohta 2017-04-04
9322968 Polarizing lens Katsushi Hamakubo, Kae Ito 2016-04-26
8690639 Method of manufacturing eyeglass lens 2014-04-08
8679579 Method of manufacturing polarizing member 2014-03-25
8414802 Method of manufacturing polarizing eyeglass lens Yoshifumi Watanabe 2013-04-09
8313193 Polarizing lens Yoshifumi Watanabe 2012-11-20
8308293 Polarizing lens Yoshifumi Watanabe 2012-11-13
7999989 Photochromic film, photochromic lens comprising the same, and method of manufacturing photochromic lens Osamu Asai, Hiroshi Ohta 2011-08-16
5472797 Optical elements having cured coating film Yoshitane Watanabe, Keitaro Suzuki, Tetsunori Matsukura 1995-12-05
5366545 Coating compositions Yoshitane Watanabe, Keitaro Suzuki, Tetsunori Matsukura 1994-11-22
5165992 Hard coating film and optical elements having such coating film 1992-11-24
4975328 Process for producing polyurethane lens Yoshiro Hirose, Takeshi Sakamoto, Masahisa Kosaka, Mitsuo Sugimura, Kazuo Inoue +1 more 1990-12-04