ET

Eijiroh Tada

HO Hoya: 11 patents #97 of 1,290Top 8%
AK Asahi Seimitsu Kabushiki Kaisha: 2 patents #18 of 40Top 45%
PE Pentax: 2 patents #187 of 396Top 50%
PC Pentax Precision Co.: 1 patents #9 of 20Top 45%
Overall (All Time): #293,949 of 4,157,543Top 8%
16
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
10976522 Imaging optical system Yutaka Takakubo 2021-04-13
10698183 Imaging optical system Yutaka Takakubo 2020-06-30
9874734 Zoom optical system and imaging apparatus provided with the same Yutaka Takakubo 2018-01-23
9635264 Imaging apparatus Hiroshi Nomura, Shinya Suzuka, Takahiro Morinaga, Toshiki Nakamura 2017-04-25
9465199 Imaging optical system having bending optical element Hiroshi Nomura 2016-10-11
8570668 Imaging optical system and imaging apparatus Yutaka Takakubo, Koichi Maruyama 2013-10-29
8395854 Imaging optical system and imaging apparatus Yutaka Takakubo 2013-03-12
8314995 Variable power optical system and imaging apparatus 2012-11-20
8120693 Imaging unit and mobile electronic device Hiroshi Nomura, Isao Okuda, Atsumi Kaneko 2012-02-21
8107004 Imaging device Hiroshi Nomura, Isao Okuda, Atsumi Kaneko 2012-01-31
8098320 Imaging device Hiroshi Nomura, Atsumi Kaneko, Isao Okuda 2012-01-17
7173776 Fisheye lens system Takayuki Ito 2007-02-06
7057804 Ultraviolet imaging system Takayuki Ito 2006-06-06
6683730 Variable-focus lens system Sachiko Nasu 2004-01-27
6078442 ND filter Masakazu Yamagata, Shunichiro Wakamiya, Masayuki Arai, Toru Shikano, Takayasu Shishido 2000-06-20
5861999 Super wide angel lens system using an aspherical lens 1999-01-19