HO

Hirofumi Ozeki

Ngk Spark Plug Co.: 1 patents #29 of 96Top 35%
📍 Hashima, JP: #1 of 1 inventorsTop 100%
Overall (1989): #104,317 of 140,708Top 75%
1
Patents 1989

Issued Patents 1989

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4874727 Particulate lead titanate ceramic and composite material containing same Kanji Ohya, Tsutomu Tsunooka, Koji Ogura, Takashi Yamamoto 1989-10-17