Machiko Yokoyama

Follow

Person

Tochigi, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Base material for wiping sheet
- Patent number 7,094,462
- Issue date Aug 22, 2006
- Kao Corporation
- Machiko Yokoyama
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Sheet pack
- Patent number 6,503,232
- Issue date Jan 7, 2003
- Kao Corporation
- Takashi Kawai
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE