Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6375932 | Hair cosmetic composition containing amine-oxide polymer | Tomoaki Hiwatashi, Yasuo Kitani, Kayo Itou, Kazuhide Hayama | 2002-04-23 |
| 5480634 | Hair-care products containing copolymers formed from unsaturated hydrophilic monomers and unsaturated monomers having a polysiloxane group | Kazuhide Hayama, Sigeoki Kawaguchi | 1996-01-02 |
| 5362485 | Hair cosmetic compositions comprising sulfide linked polysiloxanes | Kazuhide Hayama, Yukio Saitoh, Tomoaki Hiwatashi, Isao Itoh, Sigeoki Kawaguchi | 1994-11-08 |
| 5166276 | Polymer for hair-care products | Kazuhide Hayama, Sigeoki Kawaguchi | 1992-11-24 |
| 5098699 | Hair setting gel composition | Kazuhide Hayama, Sigeoki Kawaguchi | 1992-03-24 |
| 4906526 | Thermoplastic resin film having improved printability | Masayuki Inoue, Akira Okamoto, Koichi Asami, Kazuhide Hayama | 1990-03-06 |
| 4767616 | Resin compositions having hair-conditioning property | Ikuo Kubota, Kazuhide Hayama | 1988-08-30 |
| 4358567 | Resins for hairdressings | Kazuhide Hayama | 1982-11-09 |