KT

Kazuaki Tsutsumi

Rohm Co.: 10 patents #296 of 2,292Top 15%
Overall (All Time): #503,653 of 4,157,543Top 15%
10
Patents All Time

Issued Patents All Time

Showing 1–10 of 10 patents

Patent #TitleCo-InventorsDate
10529903 Light emitting device and light emitting device package Nobuaki Matsui, Hirotaka Obuchi, Yasuo Nakanishi, Takao Fujimori 2020-01-07
10497831 Semiconductor light emitting element and manufacturing method thereof Hirotaka Obuchi, Hideaki Anzai, Takao Fujimori 2019-12-03
10263150 Semiconductor light emitting device capable of increasing luminous efficiency under a low applied current Takao Fujimori, Hirotaka Obuchi 2019-04-16
9991430 Light emitting device and light emitting device package Nobuaki Matsui, Hirotaka Obuchi, Yasuo Nakanishi, Takao Fujimori 2018-06-05
9876137 Semiconductor light emitting device Hirotaka Obuchi 2018-01-23
9281444 Light emitting device and light emitting device package Nobuaki Matsui, Hirotaka Obuchi, Yasuo Nakanishi, Takao Fujimori 2016-03-08
8686433 Light emitting device and light emitting device package Nobuaki Matsui, Hirotaka Obuchi, Yasuo Nakanishi, Takao Fujimori 2014-04-01
8415682 Light emitting semiconductor device having an improved outward luminosity efficiency and fabrication method for the light emitting semiconductor device Yasuo Nakanishi, Masayuki Sonobe 2013-04-09
8222655 Semiconductor light-emitting device and process for producing the same Norikazu Ito, Masayuki Sonobe, Shinichi Tamai 2012-07-17
8053756 Nitride semiconductor light emitting element Ken Nakahara, Norikazu Ito 2011-11-08