MS

Masashi Sangen

PA Panasonic: 2 patents #9 of 204Top 5%
Sumitomo Electric Industries: 1 patents #327 of 1,127Top 30%
📍 Kasai, JP: #21 of 394 inventorsTop 6%
Overall (1989): #8,533 of 140,708Top 7%
3
Patents 1989

Issued Patents 1989

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
D303297 Fluorescent lamp Naoyuki Nakamura 1989-09-05
D302733 Compact self-ballasted fluorescent lamp Naoyuki Nakamura, Takeshi Matsumura 1989-08-08
4841193 Fluorescent lamp device with incandescent bulb type base cap Naoyuki Nakamura 1989-06-20