RS

Ritsuko Shidei

UN Unitika: 4 patents #66 of 620Top 15%
Overall (All Time): #1,282,902 of 4,157,543Top 35%
4
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
5906712 Production of fiber reinforced composite Keiichi Asami, Kiyotaka Nakanishi, Hideki Takahashi, Azusa Yamagata, Yoshiaki Echigo 1999-05-25
4778695 Production of microspheroidal particles of resole resins Yoshiaki Echigo, Mutsunori Yamao, Yoshiyuki Suematu, Tadashi Ishikura, Keiichi Asami 1988-10-18
4748214 Microspherical cured phenolic resin particles and process for production thereof using emulsion stabilizers Keiichi Asami, Yoshiaki Echigo, Mutsunori Yamao, Yoshiyuki Suematu, Tadashi Ishikura 1988-05-31
4640971 Microspherical particles of resole resins and process for producing the same Yoshiaki Echigo, Mutsunori Yamao, Yoshiyuki Suematu, Tadashi Ishikura, Keiichi Asami 1987-02-03