Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7311994 | Separator for lithium ion secondary battery and lithium ion secondary battery provided therewith | Masahide Sugiyama, Shuuji Mitani, Masanori Takahata | 2007-12-25 |
| 5717041 | Suspension polymerization method and particles obtained therewith | Masafumi Kamiyama, Masahiro Maeda, Akihiro Sano | 1998-02-10 |
| 5608017 | Suspension polymerization method | Masafumi Kamiyama, Masahiro Maeda, Akihiro Sano | 1997-03-04 |
| 5380614 | Positive chargeable color toner | Hirono Takeuchi | 1995-01-10 |
| 5346798 | Suspension polymerization method and toner for electrophotography obtained therewith | Masafumi Kamiyama, Masahiro Maeda, Akihiro Sano, Toshiya Matsushita | 1994-09-13 |