YAMAGUCHI TETSUJI has a total of 16 patent applications. Its first patent ever was published in 2007. It filed its patents most often in United States. Its main competitors in its focus markets semiconductors, audio-visual technology and computer technology are ZHANGJIAGANG EVER POWER SEMICONDUCTOR CO LTD, KOIKE HIDETOSHI and ISETEX INC.
| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 16 |
| # | Name | Total Patents |
|---|---|---|
| #1 | Yamaguchi Tetsuji | 16 |
| #2 | Ohgishi Yuko | 4 |
| #3 | Ando Takashi | 4 |
| #4 | Maruyama Yasushi | 3 |
| #5 | Hiyama Susumu | 3 |
| #6 | Akimoto Kengo | 2 |
| #7 | Kayoiji Hiroki | 2 |
| #8 | Takayama Toru | 2 |
| #9 | Ikeda Harumi | 1 |
| #10 | Tokunaga Hajime | 1 |