HS

Hiroki Sawamoto

PC Powdertech Co.: 13 patents #7 of 66Top 15%
MC Mitsui Mining & Smelting Co.: 3 patents #195 of 838Top 25%
Overall (All Time): #281,888 of 4,157,543Top 7%
16
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
12204280 Carrier, xerographic developer, and carrier production method Aya Sakuta, Makoto Ishikawa, Tetsuya Uemura 2025-01-21
11422480 Ferrite carrier core material for electrophotographic developer, ferrite carrier, manufacturing method thereof, and electrophotographic developer using said ferrite Makoto Ishikawa, Tetsuya Uemura 2022-08-23
11112716 Carrier core material for electrophotographic developer and method for producing the same, and carrier for electrophotographic developer and developer containing said carrier core material Atsushi Nil, Yuji Ito, Hajime Akiba, Shinya Hanyu 2021-09-07
11099495 Magnetic core material for electrophotographic developer, carrier for electrophotographic developer, developer, method for producing magnetic core material for electrophotographic developer, method for producing carrier for electrophotographic developer, and method for producing developer Tetsuya Uemura 2021-08-24
11029618 Carrier, electrophotographic developer and production method of carrier Aya Sakuta, Makoto Ishikawa, Tetsuya Uemura 2021-06-08
10996576 Magnetic core material for electrophotographic developer, carrier for electrophotographic developer, and developer Tetsuya Uemura 2021-05-04
10996579 Magnetic core material for electrophotographic developer, carrier for electrophotographic developer, and developer Tetsuya Uemura 2021-05-04
10969706 Magnetic core material for electrophotographic developer, carrier for electrophotographic developer, and developer Tetsuya Uemura 2021-04-06
10754271 Magnetic core material for electrophotographic developer, carrier for electrophotographic developer, and developer Tetsuya Uemura 2020-08-25
10248039 Carrier, electrophotographic developer, and method of manufacturing carrier Hajime Akiba, Tetsuya Uemura 2019-04-02
10036982 Carrier and electrophotographic developer using the carrier Tetsuya Uemura 2018-07-31
9588453 Resin-filled ferrite carrier for electrophotographic developer and electrophotographic developer using the ferrite carrier Takao Sugiura 2017-03-07
9201328 Core material for resin-filled ferrite carrier and ferrite carrier for electrophotographic developer, and electrophotographic developer using the ferrite carrier Takao Sugiura 2015-12-01
8486306 Nickel ink and conductor film formed of nickel ink Yoichi Kamikoriyama, Mikimasa Horiuchi 2013-07-16
8043535 Conductive ink Yoichi Kamikoriyama, Sumikazu Ogata, Kei Anai, Mikimasa Horiuchi, Takashi Mukuno +1 more 2011-10-25
8012378 Nickel ink Yoichi Kamikoriyama, Mikimasa Horiuchi 2011-09-06