OKUMURA TAKEFUMI has a total of 11 patent applications. Its first patent ever was published in 2005. It filed its patents most often in United States. Its main competitors in its focus markets environmental technology and electrical machinery and energy are NISHIMURA KATSUNORI, BYUN SANGWON and TSUJIKAWA TOMONOBU.
| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 11 |
| # | Industry | |
|---|---|---|
| #1 | Environmental technology | |
| #2 | Electrical machinery and energy |
| # | Name | Total Patents |
|---|---|---|
| #1 | Okumura Takefumi | 11 |
| #2 | Nishimura Shin | 3 |
| #3 | Inoue Ryo | 3 |
| #4 | Yokoyama Shoichi | 2 |
| #5 | Nishiyama Hiroo | 2 |
| #6 | Itoh Tetsuya | 2 |
| #7 | Kimura Takayuki | 2 |
| #8 | Iwayasu Norio | 2 |
| #9 | Kohno Kazushige | 1 |
| #10 | Yanai Yoshimi | 1 |