YN

Yoshifumi Nakajima

Fujitsu Limited: 7 patents #4,529 of 24,456Top 20%
BC Bridgestone Sports Co.: 3 patents #96 of 224Top 45%
Overall (All Time): #518,382 of 4,157,543Top 15%
10
Patents All Time

Issued Patents All Time

Showing 1–10 of 10 patents

Patent #TitleCo-InventorsDate
8246485 Golf club shaft Toshimitsu Miura 2012-08-21
7338386 Golf club shaft 2008-03-04
7029402 Golf club shaft tip diameter adjuster, golf club shaft and golf club 2006-04-18
6801091 Oscillator controller and atomic oscillator Ken Atsumi, Hideyuki Matsuura, Yoshito Koyama 2004-10-05
6570455 Rubidium atom oscillator generating a stable frequency Ken Atsumi, Hideyuki Matsuura, Yoshito Koyama 2003-05-27
6300841 Atomic oscillator utilizing a high frequency converting circuit and an active, low-integral-number multiplier Ken Atsumi, Hideyuki Matsuura, Yoshito Koyama, Koji Nakamuta, Minoru Sakai 2001-10-09
5751193 Rubidium atomic oscillator with laser diode wavelength adjustment Yoshito Koyama 1998-05-12
5712597 Rubidium atom oscillator with temperature stabilized frequency output Ken Atsumi, Yoshito Koyama 1998-01-27
5063568 Wavelength stabilized light source Kazuharu Chiba, Hideo Sumiyoshi 1991-11-05
4914403 Cesium oscillator Kazuharu Chiba, Hideo Sumiyoshi 1990-04-03