Mitsuru Mariyama has been granted 10 US patents while listed as an inventor at Sharp Kabushiki Kaisha . The first was granted in 1994 and the most recent in August 2014. Mitsuru Mariyama ranks #481,000 of 4,157,543 US inventors in our database (top 11.6%). Patent records list Mitsuru Mariyama in Nara, JP.
Patents per Year Patents granted per year, 1994 to 2014 Bar chart with a peak of 1 patents in 1994. peak 1 1994: 1 patents 1994 1998: 1 patents 1998 2000: 1 patents 2000 2006: 1 patents 2006 2007: 1 patents 2007 2008: 1 patents 2008 2010: 1 patents 2010 2012: 1 patents 2012 2013: 1 patents 2013 2014: 1 patents 2014 Issued Patents All Time
Showing 1–10 of 10 patents
Patent # Title Co-Inventors Date
8810135 LED drive circuit, LED illumination component, LED illumination device, and LED illumination system Yasuhiro Maruyama , Hiroyuki Shoji , Masakazu Ikeda , Hirohisa Warita , Katsumi Inaba +1 more 2014-08-19
8421371 LED drive circuit, LED illumination fixture, LED illumination device, and LED illumination system Takayuki Shimizu , Hirohisa Warita , Atsushi Kanamori 2013-04-16
8258706 LED drive circuit, LED illumination component, LED illumination device, and LED illumination system Yasuhiro Maruyama , Hiroyuki Shoji , Masakazu Ikeda , Hirohisa Warita , Katsumi Inaba +1 more 2012-09-04
7764028 LED drive circuit and LED light-emitting device Seigo Okada 2010-07-27
7423298 Bidirectional photothyristor chip, optical lighting coupler, and solid state relay Satoshi Nakajima 2008-09-09
7157747 Bidirectional photothyristor chip, light-fired coupler and solid state relay Masaru Kubo 2007-01-02
6995408 Bidirectional photothyristor chip Masaru Kubo 2006-02-07
6037613 Bidirectional thyristor device — 2000-03-14
5747836 Semiconductor integrated circuit provided with thyristor — 1998-05-05
5293051 Photoswitching device including a MOSFET for detecting zero voltage crossing Nobuyuki Kato 1994-03-08
