SI

Sumiyuki Ishigami

TC Tokyo Denpa Co.: 3 patents #1 of 21Top 5%
KS Kabushiki Kaisha Gotoh Seisakusho: 2 patents #3 of 8Top 40%
AT Agency Of Industrial Science And Technology: 1 patents #568 of 1,778Top 35%
Overall (All Time): #1,663,388 of 4,157,543Top 45%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
4986670 Temperature measurement device Futoshi Uchiyama, Ko Agatsuma, Takeshi Ohara, Koichi Tsukamoto, Mitsuru Sato +1 more 1991-01-22
4550475 Quartz unit Mitsuru Sato 1985-11-05
4486681 Y-Shaped support for piezoelectric resonator Mitsuru Sato 1984-12-04