AK

Atsushi Koyama

Canon: 14 patents #4,747 of 19,416Top 25%
Tdk: 7 patents #849 of 3,796Top 25%
TC Totoku Electric Co.: 3 patents #8 of 92Top 9%
TC Taiho Kogyo Co.: 2 patents #102 of 332Top 35%
AC Asahi Kasei Chemicals: 1 patents #262 of 543Top 50%
MS Mitsubishi Hitachi Power Systems: 1 patents #495 of 970Top 55%
FC Furukawa Electric Co.: 1 patents #1,242 of 2,370Top 55%
AK Asahi Kasei Kabushiki Kaisha: 1 patents #556 of 1,220Top 50%
Overall (All Time): #131,273 of 4,157,543Top 4%
29
Patents All Time

Issued Patents All Time

Showing 1–25 of 29 patents

Patent #TitleCo-InventorsDate
10712004 Combustor including an acoustic device mounted on a combustion liner for damping combustion oscillation of a predetermined frequency and gas turbine Wataru Kugimiya, Taiki Kinoshita 2020-07-14
9565352 Optical apparatus Hirokazu Shukuin, Kunihiko Sasaki, Yuki Nagao, Daisuke Ochi, Shigehiro Torii +2 more 2017-02-07
9518603 Bearing apparatus Shinichiro Sakamoto 2016-12-13
9213170 Lens barrel and optical apparatus 2015-12-15
9007510 Optical apparatus Daisuke Ochi, Yuki Nagao, Masayasu Mizushima, Shigehiro Torii, Kunihiko Sasaki +2 more 2015-04-14
8845776 Lead-free copper-based sintered sliding material and sliding parts Ryo Mukai, Nahomi Hamaguchi, Kao Mouri, Hiromi Yokota 2014-09-30
8743267 Optical apparatus for calculating an object distance Masanori Ishikawa, Seiichi Kashiwaba, Masayasu Mizushima, Hirokazu Shukuin 2014-06-03
8462216 Optical apparatus and camera system having a function of moving a focus lens in an optical axis direction to reduce focus shake generated in the optical axis direction Shigeki Sato, Masanori Ishikawa, Kunihiko Sasaki 2013-06-11
8441742 Lens barrel and optical apparatus including the same 2013-05-14
8259182 Optical apparatus and camera system having a function of moving a focus lens in an optical axis direction to reduce focus shake generated in the optical axis direction Shigeki Sato, Masanori Ishikawa, Kunihiko Sasaki 2012-09-04
8228619 Lens barrel and optical apparatus including the same 2012-07-24
8218066 Interchangeable lens, interchangeable lens system and camera system Eiri Tsukatani, Masahisa Tamura, Jun Sugita 2012-07-10
8034855 Polyacetal resin composition Seizaburoh Asai 2011-10-11
7989099 Information medium substrate and information medium Teppei Osawa, Tomoki Ushida, Kentaro Iida, Mamoru Usami, Hideki Hijikata 2011-08-02
7801186 Light source Sugio Wako, Xiongfei Zhang, Hiroshi Matsuura, Satoru Abe, Takeshi Takagi 2010-09-21
7458088 Intermediate for optical recording medium and method of manufacturing the optical recording medium Junichi Ide, Mamoru Usami, Tomoki Ushida, Kenji Yamaga 2008-11-25
7420748 Lens apparatus and optical apparatus 2008-09-02
7252130 Apparatus for fabricating a multi-fiber polarization-maintaining fiber assembly Masanori Nonomura, Hidetoku Iida 2007-08-07
7186109 Stamper holder, mold component, and mold assembly Mikio Domon 2007-03-06
7138165 Intermediate for optical recording medium, mold, molding apparatus, and method of manufacturing optical recording medium Mamoru Usami, Kenji Yamaga, Mikio Domon 2006-11-21
7118295 Interchangeable lens, interchangeable lens system and camera system Masahisa Tamura, Jun Sugita 2006-10-10
7085485 Intermediate adapter and camera system Jun Sugita, Masahisa Tamura 2006-08-01
7050243 Lens apparatus, camera system, and camera Masahisa Tamura 2006-05-23
7044726 Mold component and mold assembly Mamoru Usami, Kenji Yamaga, Mikio Domon, Kazuki Suzawa 2006-05-16
6926793 Method and apparatus for fabricating a multi-fiber polarization-maintaining fiber assembly Masanori Nonomura, Hidetoku Iida 2005-08-09