Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4876034 | Secondary amidoamino acid based detergent composition | Hajime Hirota, Sahoko Igarashi, Kohshiro Sotoya | 1989-10-24 |
| 4846991 | Novel fatty acid-lactic acid ester | Shigetoshi Suzue, Akio Kimura, Kiyoshi Tsukada, Kozo Noda, Jun Kamegai | 1989-07-11 |
| 4803010 | Water-soluble viscosity increasing agent and detergent composition containing the same | Hiroshi Kamitani, Jun Kamegai, Hiroki Sawada, Hajime Hirota, Tomihiro Kurosaki | 1989-02-07 |