AK

Atsumi Kaneko

PE Pentax: 13 patents #146 of 761Top 20%
PE Pentax: 12 patents #31 of 396Top 8%
HO Hoya: 4 patents #305 of 1,290Top 25%
AK Asahi Kogaku Kogyo K.K.: 1 patents #76 of 180Top 45%
AC Asahi Optical Co.: 1 patents #2 of 11Top 20%
Overall (All Time): #119,619 of 4,157,543Top 3%
31
Patents All Time

Issued Patents All Time

Showing 26–31 of 31 patents

Patent #TitleCo-InventorsDate
5737068 Electronic distance measuring device using a phase difference detection method Kiyoshi Yamamoto 1998-04-07
5486688 Non-scanning type optical reading apparatus having illuminating equalization filter Mitsunori Iima, Kazuya Hara 1996-01-23
5216480 Surveying instrument Yukio Eda 1993-06-01
4702008 Zero setting device in surveying instrument Shinichi Suzuki, Masato Hara, Koji Tsuda, Eiji Takasugi, Toshifumi Kinba 1987-10-27
4682218 Surveying instrument with image display unit 1987-07-21
4678910 Reference position-detecting device for photoelectric encoder Masato Hara 1987-07-07