YF

Yumi Fukuda

KT Kabushiki Kaisha Toshiba: 46 patents #398 of 21,451Top 2%
Overall (All Time): #62,093 of 4,157,543Top 2%
46
Patents All Time

Issued Patents All Time

Showing 1–25 of 46 patents

Patent #TitleCo-InventorsDate
12308301 Structure and bonded body Koichi Harada, Kenji Essaki, Yasushi Hattori, Yasuhiro Goto, Keiko Albessard +1 more 2025-05-20
11355416 Structure and joined composite Koichi Harada, Yasushi Hattori, Maki Yonetsu, Kenji Essaki, Keiko Albessard +1 more 2022-06-07
11300693 Radiation detection material and radiation detection device Keiko Albessard, Kenji Essaki 2022-04-12
9929321 Phosphor, producing method thereof and light-emitting device employing the phosphor Keiko Albessard, Yasushi Hattori, Seiichi Suenaga 2018-03-27
9520540 Light-emitting device with phosphor excited by blue excitation light Kunio Ishida, Keiko Albessard, Yasushi Hattori, Iwao Mitsuishi, Ryosuke Hiramatsu +2 more 2016-12-13
9349925 Light emitting device with oxynitride phosphors Yasushi Hattori, Masahiro Kato, Kunio Ishida, Shinya Nunoue 2016-05-24
9187693 Phosphors and method for producing thereof Naotoshi Matsuda, Keiko Albessard, Masahiro Kato, Iwao Mitsuishi 2015-11-17
9190582 Light emitting device Yasushi Hattori, Masahiro Kato, Iwao Mitsuishi 2015-11-17
9133391 Luminescent material Iwao Mitsuishi, Keiko Albessard 2015-09-15
9068116 Luminescent material Masahiro Kato, Naotoshi Matsuda 2015-06-30
9022591 Luminescent material Masahiro Kato, Naotoshi Matsuda, Keiko Albessard 2015-05-05
8987986 Fluorescent substance, light-emitting device and method for producing fluorescent substance Naotoshi Matsuda 2015-03-24
8974697 Luminescent material Keiko Albessard, Masahiro Kato, Iwao Mitsuishi, Takahiro Sato, Shigeya Kimura +6 more 2015-03-10
8957447 Phosphor Masahiro Kato, Yasushi Hattori, Aoi Okada 2015-02-17
8937328 Light emitting device and manufacturing method thereof Iwao Mitsuishi, Aoi Okada, Naotoshi Matsuda, Shinya Nunoue, Keiko Albessard +1 more 2015-01-20
8926863 Process for producing fluorescent substance and fluorescent substance produced thereby Naotoshi Matsuda, Ryosuke Hiramatsu 2015-01-06
8921878 Light emitting device Iwao Mitsuishi, Kunio Ishida, Aoi Okada, Naotoshi Matsuda, Keiko Albessard +2 more 2014-12-30
8877095 Process for production of fluorescent substance Naotoshi Matsuda, Masahiro Kato 2014-11-04
8858835 Red light-emitting flourescent substance and light-emitting device employing the same Aoi Okada, Naotoshi Matsuda, Iwao Mitsuishi, Shinya Nunoue, Keiko Albessard +1 more 2014-10-14
8685277 Fluorescent substance and light-emitting device employing the same Hironori Asai 2014-04-01
8652359 Red light-emitting fluorescent substance and light-emitting device employing the same Aoi Okada, Naotoshi Matsuda, Iwao Mitsuishi, Shinya Nunoue 2014-02-18
8628686 Process for production of fluorescent substance Naotoshi Matsuda, Masahiro Kato 2014-01-14
8603361 Fluorescent substance and light-emitting device employing the same Hironori Asai 2013-12-10
8569943 Luminescent material Iwao Mitsuishi, Naotoshi Matsuda, Keiko Albessard, Aoi Okada, Masahiro Kato +3 more 2013-10-29
8558251 Light emitting device Iwao Mitsuishi, Aoi Okada, Ryosuke Hiramatsu, Naotoshi Matsuda, Shinya Nunoue +2 more 2013-10-15