HS

Hajime Sakai

Sumitomo Electric Industries: 3 patents #7,735 of 21,551Top 40%
Ngk Spark Plug Co.: 1 patents #959 of 1,594Top 65%
The Procter & Gamble: 1 patents #6,322 of 10,133Top 65%
Overall (All Time): #943,458 of 4,157,543Top 25%
5
Patents All Time

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
D985129 Skin analyzer for skin care Naoki Miyamoto, Koji Yamamoto 2023-05-02
7130647 Cordless telephone system Yuji Hirai 2006-10-31
6998336 Wiring board and method of producing the same Masahiro Iba, Takahiro Hayashi 2006-02-14
6882713 Telephone apparatus Youji Manabe, Toshiaki Sakiyama, Yuji Hirai, Hideyuki Matsuo, Kentaro Oka 2005-04-19
5487105 Facsimile apparatus operable in facsimile or telephone mode 1996-01-23