MH

Masahiro Hayakawa

PE Pentax: 15 patents #129 of 761Top 20%
Canon: 9 patents #6,722 of 19,416Top 35%
MC Minolta Co.: 4 patents #477 of 1,416Top 35%
SI Sumitomo Heavy Industries: 4 patents #107 of 917Top 15%
Fujitsu Limited: 3 patents #8,614 of 24,456Top 40%
KT Kabushiki Kaisha Toshiba: 2 patents #9,982 of 21,451Top 50%
SC Screen Holdings Co.: 1 patents #452 of 686Top 70%
TU Tohoku University: 1 patents #615 of 1,680Top 40%
AK Asahi Kogaku Kogyo K.K.: 1 patents #76 of 180Top 45%
FC Futaba Industrial Co.: 1 patents #70 of 167Top 45%
JT Jtekt: 1 patents #1,102 of 1,969Top 60%
NE Nec: 1 patents #7,889 of 14,502Top 55%
Overall (All Time): #69,853 of 4,157,543Top 2%
43
Patents All Time

Issued Patents All Time

Showing 26–43 of 43 patents

Patent #TitleCo-InventorsDate
6130993 Camera having an image stabilizer 2000-10-10
5946501 Waterproof and/or water-resistant camera 1999-08-31
5907729 Camera having cover mechanism of film chamber 1999-05-25
5822631 Forced-driving apparatus for film rewinding motor of a camera Yasuhiko Endoh 1998-10-13
5713048 Waterproof and/or water-resistant camera 1998-01-27
5708875 Camera having electronic flash equipment 1998-01-13
5452034 Regulated parallax compensation system for a camera finder Yuichi Ichikawa 1995-09-19
5406346 Adaptor for film cartridge 1995-04-11
5345285 View finder and camera having same Sachio Hasushita, Toshiaki Ueda 1994-09-06
5305041 Remotely controllable camera system Yuichi Ichikawa, Kosei Kosako 1994-04-19
5305031 Sealed case 1994-04-19
5153622 Pressure alarm for water-sealed camera Kousei Kosako 1992-10-06
5111222 Pressure alarm in water-sealed camera Kousei Kosako 1992-05-05
5070348 Waterproof and/or water-resistant camera Kosei Kosako 1991-12-03
5021938 Transmission system with backup function 1991-06-04
4963913 Automatic focusing camera Osamu Shindo 1990-10-16
4384215 Capacitor element Yutaka Hirano, Hideo Ashida, Hideki Ikuta 1983-05-17
4359754 Semiconductor device Yutaka Hirano 1982-11-16