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Latest external collaboration on country level. Dive into details by clicking on the dots.

Hotspot


Dive into the research topics where Atsushi Koyama is active.

Publication


Featured researches published by Atsushi Koyama.


Archive | 2004

Intermediate adapter and camera system

Jun Sugita; Masahisa Tamura; Atsushi Koyama


Archive | 2004

Interchangeable lens, interchangeable lens system and camera system

Eiri Tsukatani; Masahisa Tamura; Jun Sugita; Atsushi Koyama


Archive | 2007

LENS APPARATUS AND OPTICAL APPARATUS

Atsushi Koyama


Archive | 2009

OPTICAL APPARATUS AND CAMERA SYSTEM

Shigeki Sato; Masanori Ishikawa; Atsushi Koyama; Kunihiko Sasaki


Archive | 2001

Lens holding structure

Atsushi Koyama; Takashi Suzuki; Masahisa Tamura; 小山 敦史; 田村 昌久; 隆司 鈴木


Archive | 2012

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; Atsushi Koyama; Kunihiko Sasaki


Archive | 2008

OPTICAL INSTRUMENT AND CAMERA SYSTEM

Masaaki Ishikawa; Atsushi Koyama; Kunihiko Sasaki; Shigeki Sato; 佐々木 邦彦; 佐藤 茂樹; 小山 敦史; 石川 正哲


Archive | 2005

Lens apparatus, camera system, and camera

Atsushi Koyama; Masahisa Tamura


Archive | 2002

ELECTRICAL WIRING DEVICE FOR INTERCHANGEABLE LENS BARREL

Atsushi Koyama; 小山 敦史


Archive | 2005

Exchange lens, exchange lens system and camera system

Atsushi Koyama; Masahisa Tamura; Sugita Jun

Collaboration


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