Yukuo Eguchi has been granted 4 US patents while listed as an inventor at Unknown . The first was granted in 1981 and the most recent in May 1984. Yukuo Eguchi ranks #1,080,739 of 4,157,543 US inventors in our database (top 26.0%). Patent records list Yukuo Eguchi in Chiba, JP.
Patents per Year Patents granted per year, 1981 to 1984 Bar chart with a peak of 2 patents in 1981. peak 2 1981: 2 patents 1981 1983: 1 patents 1983 1984: 1 patents 1984
Issued Patents All Time
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Showing 1–4 of 4 patents
Patent # Title Co-Inventors Date
4451467 4(3H)-Quinazolinone derivatives, process for production thereof, and pharmaceutical compositions comprising said compounds Masayuki Ishikawa , Soyao Moriguchi , Hisashi Ebisawa 1984-05-29
4405623 Quinazolinde-dione compounds, process for production thereof and pharmaceutical use thereof Masayuki Ishikawa , Akiko Sugimoto , Fujinori Sasaki , Hisashi Ebisawa , Soyao Moriguchi +1 more 1983-09-20
4293553 1-Phthalazone derivatives, and use thereof Masayuki Ishikawa , Hiromichi Tanaka , Shigeru Ito , Yoshimi Takashima , Masahiko Kobayashi 1981-10-06
4276295 3-Aromatic moiety substituted-4(3H)-quinazolinones, process for production thereof, and use thereof Masayuki Ishikawa , Hiromichi Tanaka , Shigeru Ito , Yoshimi Takashima , Masahiko Kobayashi 1981-06-30