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Hiroto Yasui

USPTO Granted Patents = 13

EPO Patents = 1

Average Co-Inventor Count = 1.0

ph-index = 3

Forward Citations = 35(Granted Patents)

Location History:

Tochigi, JP (2003 - 2006)
Utsunomiya, JP (2007 - 2011)
Saitama, JP (2013 - 2020)

Company Filing History:

13 out of 90,673

Canon Kabushiki Kaisha

Years Active: 2003-2020

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13 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 10746977 - Optical system and image pickup apparatus including the same (2020-08-18),

2. 10379272 - Optical system and image pickup apparatus including the same (2019-08-13),

3. 10082643 - Optical system and optical apparatus with diffractive optical element (2018-09-25),

4. 9164291 - Optical system including diffractive optical element and optical apparatus (2015-10-20),

5. 8792168 - Optical system including diffractive grating and optical apparatus (2014-07-29),

6. 8355205 - Optical element and optical system including the same (2013-01-15),

7. 8064145 - Optical system and optical apparatus using the same (2011-11-22),

8. 7710651 - Contacting two-layer diffractive optical element (2010-05-04),

9. 7253973 - Image-pickup optical system (2007-08-07),

10. 7221519 - Zoom lens system and image pickup apparatus including the same (2007-05-22),

11. 7151636 - Optical system (2006-12-19),

12. 6741398 - Zoom lens system, image projecting and image pick-up devices using the same (2004-05-25),

13. 6639737 - Zoom lens system and projection apparatus using the same (2003-10-28),

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