YH

Yasuhiko Hara

HI Hitachi: 15 patents #2,636 of 28,497Top 10%
HI Hitachi Video Engineering, Incorporated: 2 patents #34 of 181Top 20%
KK Kayaba Kogyo: 2 patents #11 of 155Top 8%
Overall (All Time): #280,482 of 4,157,543Top 7%
17
Patents All Time

Issued Patents All Time

Showing 1–17 of 17 patents

Patent #TitleCo-InventorsDate
5930382 Wiring pattern inspecting method and system for carrying out the same Yoko Irie, Hideaki Doi, Tadashi Iida, Yasuhiro Fujishita, Yasuo Nakagawa +1 more 1999-07-27
5754621 X-ray inspection method and apparatus, prepreg inspecting method, and method for fabricating multi-layer printed circuit board Yoko Suzuki, Hideaki Doi, Koichi Karasaki, Tadashi Iida 1998-05-19
5684349 Electromagnetic rotary actuator Fumihiko Tsuji, Katsuhito Miyoshi 1997-11-04
5684350 Electromagnetic rotary actuator and housing for electronic devices Fumihiko Tsuji, Katsuhito Miyoshi 1997-11-04
5331407 Method and apparatus for detecting a circuit pattern Hideaki Doi, Koichi Karasaki 1994-07-19
5146509 Method of inspecting defects in circuit pattern and system for carrying out the method Mitsuyoshi Koizumi, Shigeki Kitamura 1992-09-08
4962541 Pattern test apparatus Hideaki Doi, Akira Sase, Satoshi Shinada 1990-10-09
4930890 Method and apparatus for detecting through-hole voids in multi-layer printed wiring board Kenzo Endo 1990-06-05
4908871 Pattern inspection system Hideaki Doi, Koichi Karasaki, Akira Sase 1990-03-13
4816686 Method and apparatus for detecting wiring patterns Koichi Karasaki, Noriaki Ujiie 1989-03-28
4700225 Method and apparatus for testing pattern of a printed circuit board Keiya Saito, Koichi Karasaki, Akira Sase 1987-10-13
4692690 Pattern detecting apparatus Koichi Karasaki, Noriaki Ujiie, Akira Sase 1987-09-08
4672209 Component alignment method Koichi Karasaki, Mamoru Kobayashi 1987-06-09
4614430 Method of detecting pattern defect and its apparatus Yoshimasa Ohshima, Satoru Fushimi, Hiroshi Makihira 1986-09-30
4608494 Component alignment apparatus Mamoru Kobayashi, Hideaki Sasaki 1986-08-26
4508453 Pattern detection system Nobuyuki Akiyama, Satoru Fushimi, Yoshimasa Oshima, Nobuhiko Aoki 1985-04-02
4277175 Method and apparatus for inspecting printed wiring boards Koichi Karasaki 1981-07-07