MK

Masahisa Koyama

HC Hidan Co.: 2 patents #5 of 17Top 30%
📍 Tsukuba, JP: #1,315 of 2,818 inventorsTop 50%
Overall (All Time): #2,238,664 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
6070725 Cosmetic container Kenichi Ito, Tetsuo Kobayashi, Yoshinobu Abe 2000-06-06
5749664 Cosmetic container having an insert sleeve to improve air tightness and rotational characteristics Takashi Inoue, Kenichi Ito, Tetsuo Kobayashi, Hirobumi Matayoshi, Hideo Fujita 1998-05-12