MW

Masakazu Watanabe

Ngk Spark Plug Co.: 3 patents #8 of 96Top 9%
Sumitomo Electric Industries: 1 patents #327 of 1,127Top 30%
📍 Toyota, JP: #13 of 73 inventorsTop 20%
Overall (1989): #4,307 of 140,708Top 4%
4
Patents 1989

Issued Patents 1989

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
4880756 Silicon nitride sintered product Kazuhiro Urashima, Yo Tajima, Kenji Nakanishi 1989-11-14
4877760 Aluminum nitride sintered body with high thermal conductivity and process for producing same Akiyasu Okuno, Kazuhiko Ikoma 1989-10-31
4833871 Apparatus for inserting optical fibers into a spacer having spiral grooves Satoshi Ogawa, Masanori Fujikawa 1989-05-30
4800137 Composite layer aluminum nitride base sintered body Akiyasu Okuno, Kazuhiko Ikoma 1989-01-24