- 1945
- Born In Saitama, Japan
- 1968
- Graduate from Industrial Design Course, Musashino Art Junior
College
- 1977- 85
- Managing Director of LD Yamagiwa Laboratory
- 1987
- Established HALO Design Laboratory
- 1972
- Invited Artist at The 5th Tokyo International Lighting Design
Competition
- 1973
- Joint Exhibition "Lighting Environment"
with Takamichi Itoh at
Design Forum 73 at Zon, Seibu Department Store
- 1980
- Exhibition "Japan Style" at Victoria and Albert Museum
- 1992
- Tokyo Design Marathon Exhibition "Kouki(Light Container)" at
Tokyo Designer's Space
- 2000
- Solo Exhibition "Kazuo Motozawa World of Lighting / Form of
Lighting" at Living Design Center, Tokyo
- 2005
- Featured in the publication "Nippon Products" by Bijutsu-Shuppan
