YK

Yoshiaki Kumagai

SO Sony: 38 patents #763 of 25,231Top 4%
Fujitsu Limited: 11 patents #2,845 of 24,456Top 15%
Overall (All Time): #58,816 of 4,157,543Top 2%
48
Patents All Time

Issued Patents All Time

Showing 1–25 of 48 patents

Patent #TitleCo-InventorsDate
D745517 Head mountable display 2015-12-15
D695739 Head mountable display Shigenori Yoshida, Yasuhide Hosoda 2013-12-17
D695738 Head mountable display Yasuhide Hosoda 2013-12-17
D686269 Projector 2013-07-16
D675599 Earphone Qi-Sheng Zheng 2013-02-05
D665768 Portable recorder 2012-08-21
D665346 Battery charger Hidefumi Goto 2012-08-14
D656489 Earphone Qi-Sheng Zheng 2012-03-27
D649955 Portable recorder 2011-12-06
D627769 Mobile phone 2010-11-23
D609691 Combined disc player, clock and radio receiver Daisuke Shiono, Naoya Sukeda 2010-02-09
7597457 Lighting apparatus Akira Shirakura, Koji Ashizaki 2009-10-06
D597520 Combined disc player, clock and radio receiver Daisuke Shiono, Naoya Sukeda 2009-08-04
D597533 Remote controller Masato Kawasaki 2009-08-04
D595687 Combined disc player, clock and radio receiver Daisuke Shiono, Naoya Sukeda 2009-07-07
D595688 Combined disc player, clock and radio receiver Daisuke Shiono, Naoya Sukeda 2009-07-07
7336289 Projection type display apparatus Hidenori Ishikawa, Akihiko Tsurishima, Shunichi Hashimoto, Akira Masutani 2008-02-26
D517023 Combined remote controller and laser pointer 2006-03-14
D496036 Portable information terminal Ryuta Kanno 2004-09-14
D494166 Portable information terminal Ryuta Kanno, Masato Kawasaki 2004-08-10
D494167 Portable information terminal Maki Hirakawa, Ryuta Kanno 2004-08-10
6728264 Radio base station for a CDMA mobile communication system Kosuke Nobuyasu 2004-04-27
D452889 Toy Kozo Kawakita, Takeshi Yamagishi, Hiroshi Osawa, Kazuhiro Kato, Shuichi Kobayashi +2 more 2002-01-08
D452542 Toy Kozo Kawakita, Takeshi Yamagishi, Hiroshi Osawa, Kazuhiro Kato, Shuichi Kobayashi +2 more 2001-12-25
D452541 Toy Kozo Kawakita, Takeshi Yamagishi, Hiroshi Osawa, Kazuhiro Kato, Shuichi Kobayashi +2 more 2001-12-25