YI

Yoshiaki Ishida

SC Sato Kogyo Co.: 4 patents #1 of 27Top 4%
MA Mac: 2 patents #5 of 23Top 25%
HA Hazama: 1 patents #3 of 23Top 15%
KO Komatsu: 1 patents #1,163 of 2,087Top 60%
MA Maeda: 1 patents #11 of 35Top 35%
UI Ube Industries: 1 patents #895 of 1,686Top 55%
Overall (All Time): #1,050,773 of 4,157,543Top 30%
5
Patents All Time

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
5915790 Tunnel boring machine Takashi Sakai, Sohta Takatsu, Yoshihito Minami, Tomio Jatani 1999-06-29
5237384 Laser positioner and marking method using the same Nobuyuki Fukunaga, Mutsuhiko Kimura, Yasuo Metoki, Takeo Saito, Kenji Miyahara 1993-08-17
5198868 Laser surveying system having a function of marking reference points Takeo Saito, Nobuyuki Fukunaga, Mutsuhiko Kimura, Yasuo Metoki, Kenji Miyahara 1993-03-30
5090325 Tunnel driving method Takeo Saito, Nobuyuki Fukunaga, Mutsuhiko Kimura, Yasuo Metoki 1992-02-25
4719582 Method and apparatus for determining the chemical structure of an unknown substance Keiji Saito, Tokio Oshima 1988-01-12