YK

Yoshitomo Kumai

SE Seiko Epson: 31 patents #478 of 7,774Top 7%
Overall (All Time): #117,014 of 4,157,543Top 3%
31
Patents All Time

Issued Patents All Time

Showing 1–25 of 31 patents

Patent #TitleCo-InventorsDate
RE49885 Polarization device, method of manufacturing the same, liquid crystal device, and electronic apparatus 2024-03-26
11762271 Projector Junichi Wakabayashi, Junichi Suzuki, Ryuta Koizumi, Masaya Masuda, Hidenori Kawata 2023-09-19
11346990 Polarizing element, liquid crystal apparatus and electronic apparatus 2022-05-31
10877363 Display device and reflective polarizing element 2020-12-29
10866349 Wire grid polarization element and electronic device 2020-12-15
10859744 Method of manufacturing wire grid polarization element 2020-12-08
10503005 Wire grid polarization element and projection type display apparatus Mitsutaka Ohori, Koichiro Akasaka 2019-12-10
10386557 Optical element, method for manufacturing the same, and electronic apparatus 2019-08-20
RE47179 Polarization device, method of manufacturing the same, liquid crystal device, and electronic apparatus 2018-12-25
9977168 Optical element, method for manufacturing the same, and electronic apparatus 2018-05-22
RE45993 Polarization device, method of manufacturing the same, liquid crystal device, and electronic apparatus 2016-05-03
9201170 Method for producing polarizing element 2015-12-01
9164307 Polarizer, polarizer producing process, projector, liquid crystal device, and electronic device 2015-10-20
8771530 Method for producing polarizing element 2014-07-08
8724056 Polarizing element, liquid crystal device, and electronic apparatus 2014-05-13
8687151 Polarization element comprising a plurality of metal protruding sections formed in a striped manner having first and second heat radiation sections tilted in opposite directions 2014-04-01
8619215 Optical element, method for manufacturing the same, liquid crystal device, and electronic apparatus 2013-12-31
8593593 Polarization element, projector, liquid crystal device, electronic apparatus, and method of manufacturing polarization element 2013-11-26
8567215 Method for producing polarizing element 2013-10-29
8549880 Method for producing polarizing element 2013-10-08
8488070 Polarizing element and method for manufacturing the same, projection type display, liquid crystal device, and electronic apparatus 2013-07-16
8471984 Polarizing element, method for producing same, liquid crystal device, electronic apparatus, and projection display 2013-06-25
8467017 Polarizing element, method for producing same, liquid crystal device, electronic apparatus, and projection display 2013-06-18
8416371 Polarization device, method of manufacturing the same, liquid crystal device, and electronic apparatus 2013-04-09
8205992 Polarization element and projection display device 2012-06-26