AK

Akira Katayama

NI Nikon: 49 patents #40 of 2,493Top 2%
Canon: 22 patents #2,832 of 19,416Top 15%
Ricoh Company: 13 patents #1,714 of 9,818Top 20%
KT Kabushiki Kaisha Toshiba: 12 patents #2,533 of 21,451Top 15%
Toshiba Memory: 12 patents #93 of 1,971Top 5%
HC Hodogaya Chemical Co.: 8 patents #37 of 359Top 15%
NK Nippon Kogaku K.K.: 8 patents #32 of 382Top 9%
Kioxia: 5 patents #270 of 1,813Top 15%
TI Toray Industries: 4 patents #687 of 3,690Top 20%
Mitsubishi Electric: 3 patents #8,691 of 25,717Top 35%
SH Sk Hynix: 2 patents #2,373 of 4,849Top 50%
MC Miwa Lock Co.: 2 patents #2 of 12Top 20%
SO Sony: 1 patents #17,262 of 25,231Top 70%
JS Japan Ae Power Systems: 1 patents #17 of 57Top 30%
PA Panasonic: 1 patents #13,264 of 21,108Top 65%
LI Lintec: 1 patents #282 of 514Top 55%
Overall (All Time): #7,121 of 4,157,543Top 1%
140
Patents All Time

Issued Patents All Time

Showing 25 most recent of 140 patents

Patent #TitleCo-InventorsDate
12406727 Memory device Yu Shimada, Ryousuke Takizawa 2025-09-02
12224033 Memory system Kosuke Hatsuda 2025-02-11
12201946 Fluid separation element Shinya Shimoda, Masaaki Takenaka 2025-01-21
11908518 Memory system 2024-02-20
11908501 Storage device that read data while a switching element of a memory cell is on Kosuke Hatsuda 2024-02-20
11538512 Memory device that executes a read operation based on a self-reference scheme 2022-12-27
11527276 Semiconductor storage device 2022-12-13
11493833 Indoor camera Kenichi Kuroki, Hiroyuki Noda, Shinichi Takamatsu, Kumiko Kawazoe, Yusuke Oshikata +1 more 2022-11-08
11097224 Fluid separating element and telescoping prevention plate Shinya Shimoda, Masaaki Takenaka 2021-08-24
11087809 Semiconductor memory device 2021-08-10
10892000 Semiconductor memory device 2021-01-12
10861525 Nonvolatile storage device 2020-12-08
10453512 Memory device 2019-10-22
10410706 Resistance change type memory Katsuyuki Fujita 2019-09-10
10410704 Memory device Keiji Hosotani, Tatsuya Kishi 2019-09-10
10360976 Memory device 2019-07-23
10159942 Separation membrane, sheet channel material, and separation membrane element Yoshie Marutani, Hiroyuki Yamada, Hiroho Hirozawa, Kentaro Takagi, Yoshiki Okamoto +4 more 2018-12-25
10107545 Air-conditioning apparatus for vehicle Masatoshi Morishita, Toshihisa Kondo 2018-10-23
9953707 Memory device 2018-04-24
9899082 Semiconductor memory device 2018-02-20
9884536 Heat-pump automotive air conditioner and defrosting method of the heat-pump automotive air conditioner Nobuya Nakagawa, Toshihisa Kondou, Masatoshi Morishita 2018-02-06
9824736 Memory device 2017-11-21
9767863 Redundancy memory device comprising a plurality of selecting circuits 2017-09-19
9761293 Semiconductor storage device 2017-09-12
9741434 Resistance change memory Masahiro Takahashi, Tsuneo Inaba, Hyuck-Sang Yim, Dong Keun Kim, Byoung-Chan Oh +1 more 2017-08-22