KM

Kazuaki Matsui

PA Panasonic: 6 patents #4,438 of 21,108Top 25%
KO Konica Minolta Opto: 5 patents #76 of 418Top 20%
MC Minolta Co.: 3 patents #574 of 1,416Top 45%
MI Mitsui Toatsu Chemicals, Incorporated: 2 patents #607 of 1,543Top 40%
MC Mitsui Chemicals: 1 patents #1,270 of 2,279Top 60%
KI Konica Minolta Photo Imaging: 1 patents #50 of 106Top 50%
HO Hoya: 1 patents #757 of 1,290Top 60%
TC Toppan Printing Co.: 1 patents #691 of 1,467Top 50%
Overall (All Time): #215,633 of 4,157,543Top 6%
20
Patents All Time

Issued Patents All Time

Showing 1–20 of 20 patents

Patent #TitleCo-InventorsDate
12326656 Mask blank and method of manufacturing photomask Hitoshi Maeda, Kazutake TANIGUCHI, Naoto YONEMARU 2025-06-10
10108024 Lens barrel Manabu Kobayashi 2018-10-23
9285672 Reflective mask and method for manufacturing same Norihito Fukugami, Yo Sakata, Genta Watanabe 2016-03-15
8780456 Lens barrel Fumio Shinano, Tetsuya Uno, Norihiko Saka 2014-07-15
8654460 Lens barrel 2014-02-18
8547647 Lens barrel Fumio Shinano, Tetsuya Uno, Norihiko Saka 2013-10-01
8456755 Lens barrel Fumio Shinano, Tetsuya Uno, Norihiko Saka 2013-06-04
8223441 Lens barrel Fumio Shinano, Tetsuya Uno, Norihiko Saka 2012-07-17
7898745 Lens unit and image pickup apparatus Tetsuya Uno, Yoshifumi Mitani 2011-03-01
7787192 Lens unit and photographing apparatus Yoshifumi Mitani 2010-08-31
7773321 Lens unit and image pickup apparatus Yoshifumi Mitani 2010-08-10
7652830 Lens barrel and photographing apparatus Yoshifumi Mitani 2010-01-26
7557852 Image-taking apparatus, magnification variation control method, and lens unit Naoki Hashimoto, Hiroshi Mashima, Hideo Onishi, Mamoru Terada 2009-07-07
7463428 Lens barrel and photographing apparatus Yoshifumi Mitani 2008-12-09
7286163 Image taking device with bent optical system Yoshihiro Hara, Sadanobu Ueda, Yoshito Iwasawa, Akira Kosaka, Satoshi Yokota 2007-10-23
7180542 Imaging lens device and digital camera having the imaging lens device Yoshito Iwasawa, Yoshihiro Hara, Akira Kosaka, Sadanobu Ueda, Satoshi Yokota 2007-02-20
7170558 Compact and low-profile digital camera Satoshi Yokota, Akira Kosaka, Toshiyuki Tanaka, Yoshihiro Hara, Sadanobu Ueda +1 more 2007-01-30
6479711 Process for producing aromatic hydroxy compound Toshihiro Takai 2002-11-12
5254721 Process for producing cyclohexyl acetate Kaoru Inoue, Masao Iwasaki 1993-10-19
5241106 Process for producing ethyl acetate Kaoru Inoue, Masao Iwasaki 1993-08-31