WK

Wataru Kikuchi

FU Fujifilm: 18 patents #451 of 4,519Top 10%
Canon: 5 patents #9,253 of 19,416Top 50%
NC Nitto Boseki Co.: 2 patents #91 of 339Top 30%
EM Elpida Memory: 1 patents #419 of 692Top 65%
Sumitomo Electric Industries: 1 patents #13,249 of 21,551Top 65%
NE Nec: 1 patents #7,889 of 14,502Top 55%
Fujitsu Limited: 1 patents #14,843 of 24,456Top 65%
JS Jsp: 1 patents #80 of 134Top 60%
Overall (All Time): #122,270 of 4,157,543Top 3%
30
Patents All Time

Issued Patents All Time

Showing 25 most recent of 30 patents

Patent #TitleCo-InventorsDate
12375859 Polymer-based piezoelectric composite material, piezoelectric film, piezoelectric speaker, and flexible display 2025-07-29
12057152 Magnetic recording medium, magnetic tape cartridge, and magnetic recording and reproducing device Noriko Oyanagi 2024-08-06
11869559 Magnetic tape having controlled water contact angle ratio, magnetic tape cartridge, and magnetic tape apparatus Noriko Oyanagi, Akio Tamura 2024-01-09
11670334 Magnetic recording medium, magnetic recording and reproducing device and composition for magnetic recording medium including polyalkyleneimine compound Masatoshi Yumoto, Takashi Imai 2023-06-06
11276429 Magnetic recording medium including compound having a salt structure and magnetic recording and reproducing apparatus So Matsuyama 2022-03-15
11170812 Magnetic recording medium including specified compound, magnetic recording and reproducing apparatus, and composition for magnetic recording medium Kenji Naoi, Masashi Shirata 2021-11-09
11138998 Magnetic recording medium, magnetic recording and reproducing device and composition for magnetic recording medium including polyalkyleneimine compound Masatoshi Yumoto, Takashi Imai 2021-10-05
10391803 Image recording paper medium, method for manufacturing same, and image recording method Yuji Yoshida 2019-08-27
10355215 Composition for forming organic semiconductor film, organic semiconductor element, and method for manufacturing organic semiconductor element Takafumi Nakayama, Kensuke MASUI 2019-07-16
10214592 Protein assay method specific to TRACP-5b (tartrate resistant acid phosphatase 5b) Kumiko Sasagawa, Kenta Noda 2019-02-26
9989674 Plastics optical component and method for manufacturing the same Daigo Kobayashi, Yuichi Miyoshi 2018-06-05
9984711 Magnetic recording medium and coating composition for magnetic recording medium Toshihide Aoshima, Kazutoshi Katayama, Tatsuo Mikami 2018-05-29
9920083 Image recording paper medium and image recording method Yuji Yoshida, Ryuji Shinohara 2018-03-20
9889695 Image recording method Yuji Yoshida, Seiya Sakurai, Ryuji Shinohara 2018-02-13
9761261 Magnetic recording medium and magnetic coating composition for magnetic recording medium Toshihide Aoshima, Kazutoshi Katayama, Tatsuo Mikami 2017-09-12
9562167 Magnetic recording medium and magnetic coating composition for magnetic recording medium Toshihide Aoshima, Kazutoshi Katayama, Tatsuo Mikami 2017-02-07
9360666 Plastics optical component and method for manufacturing the same Daigo Kobayashi, Yuichi Miyoshi 2016-06-07
9283719 Optical component and method of making the same Daigo Kobayashi 2016-03-15
9017959 5.9 kDa peptide immunoassay method Momoe Sato, Kenta Noda, Iwao Kiyokawa, Toshihide Miura, Ryo Kojima +2 more 2015-04-28
8964313 Plastic optical element and method of making the same Daigo Kobayashi 2015-02-24
8947795 Plastic optical element and method of manufacturing the same Daigo Kobayashi 2015-02-03
8728708 Photosensitive resin composition, oxime sulfonate compound, method for forming cured film, cured film, organic EL display device, and liquid crystal display device Kyouhei Sakita, Masatoshi Yumoto, Masanori Hikita 2014-05-20
8728687 Resin, pigment dispersion, colored curable composition, color filter produced using the same, and method for producing the same Yushi Kaneko, Kazuhiro Fujimaki, Shigekazu Suzuki, Shuichiro Osada 2014-05-20
7947406 Polymer electrolyte, membrane/electrode assembly, and fuel cell Takayuki Itou, Yuushi Kaneko 2011-05-24
7642635 Stacked semiconductor package Toshio Sugano, Satoshi Isa 2010-01-05