IK

Ikue Kawashima

Ricoh Company: 27 patents #743 of 9,818Top 8%
TT The University Of Tokyo: 2 patents #500 of 2,633Top 20%
CP Chugai Pharmaceutical: 1 patents #730 of 1,238Top 60%
TC Tohoku Ricoh Co.: 1 patents #101 of 204Top 50%
Overall (All Time): #121,802 of 4,157,543Top 3%
30
Patents All Time

Issued Patents All Time

Showing 26–30 of 30 patents

Patent #TitleCo-InventorsDate
5448113 Micro metal-wiring structure having stress induced migration resistance Kouei Suzuki, Kouichi Ohtaka, Shuichi Hikichi 1995-09-05
5124543 Light emitting element, image sensor and light receiving element with linearly varying waveguide index 1992-06-23
4966821 Perpendicular magnetic recording medium Futoyoshi Koh, Masafumi Kumano, Shinei Ryu 1990-10-30
4566453 Vascular anastomosis apparatus Masafumi Kumano, Masayuki Hirama, Yasuhiro Tsuji 1986-01-28
4432622 Focusing-position-detection circuit Yoshio Fukushima, Tamio Murano, Toshitatsu Suzuki 1984-02-21