RK

Ryota Katsumata

KT Kabushiki Kaisha Toshiba: 134 patents #42 of 21,451Top 1%
Kioxia: 27 patents #11 of 1,813Top 1%
Toshiba Memory: 26 patents #19 of 1,971Top 1%
IBM: 2 patents #32,839 of 70,183Top 50%
SO Sony: 1 patents #17,262 of 25,231Top 70%
📍 Yokkaichi, NY: #2 of 10 inventorsTop 20%
Overall (All Time): #3,753 of 4,157,543Top 1%
190
Patents All Time

Issued Patents All Time

Showing 1–25 of 190 patents

Patent #TitleCo-InventorsDate
12426268 Semiconductor memory having memory cell regions and other regions alternately along a bit line direction Tomoo Hishida, Sadatoshi Murakami, Masao Iwase 2025-09-23
12414299 Nonvolatile semiconductor memory device and manufacturing method thereof Masaru Kito, Hideaki Aochi, Akihiro Nitayama, Masaru Kidoh, Hiroyasu Tanaka +3 more 2025-09-09
12356622 Nonvolatile semiconductor memory device and method for manufacturing same Yoshiaki Fukuzumi, Masaru Kito, Masaru Kidoh, Hiroyasu Tanaka, Yosuke Komori +7 more 2025-07-08
12272676 Memory device Masayoshi Tagami, Jun Iijima, Tetsuya Shimizu, Takamasa Usui, Genki Fujita 2025-04-08
RE50330 Nonvolatile semiconductor memory device and method for driving same Hideaki Aochi, Hiroyasu Tanaka, Masaru Kito, Yoshiaki Fukuzumi, Masaru Kidoh +7 more 2025-03-04
12232325 Semiconductor storage device Keisuke NAKATSUKA, Yoshitaka Kubota, Tetsuaki Utsumi, Yoshiro Shimojo 2025-02-18
12232315 Semiconductor storage device Yusuke Ochi, Masahiro Fukuda 2025-02-18
12089409 Semiconductor memory Masayoshi Tagami, Jun Iijima, Kazuyuki Higashi 2024-09-10
12063779 Non-volatile semiconductor memory device and manufacturing method thereof Yoshihiro Akutsu 2024-08-13
12058862 Non-volatile semiconductor storage device and method of manufacturing the same Yoshiaki Fukuzumi, Masaru Kidoh, Masaru Kito, Hiroyasu Tanaka, Yosuke Komori +2 more 2024-08-06
11974439 Semiconductor memory having memory cell regions and other regions alternately arranged along a bit line direction Tomoo Hishida, Sadatoshi Murakami, Masao Iwase 2024-04-30
11903207 Method for writing data of a first memory cell transistor of a nonvolatile semiconductor memory device Masaru Kito, Hideaki Aochi, Akihiro Nitayama, Masaru Kidoh, Hiroyasu Tanaka +3 more 2024-02-13
11903205 Method for reading data of a first memory cell transistor of a nonvolatile semiconductor memory device Masaru Kito, Hideaki Aochi, Akihiro Nitayama, Masaru Kidoh, Hiroyasu Tanaka +3 more 2024-02-13
11844218 Non-volatile semiconductor storage device and method of manufacturing the same Yoshiaki Fukuzumi, Masaru Kidoh, Masaru Kito, Hiroyasu Tanaka, Yosuke Komori +2 more 2023-12-12
11817428 Memory device Masayoshi Tagami, Jun Iijima, Tetsuya Shimizu, Takamasa Usui, Genki Fujita 2023-11-14
11792992 Nonvolatile semiconductor memory device and method for manufacturing same Yoshiaki Fukuzumi, Masaru Kito, Masaru Kidoh, Hiroyasu Tanaka, Yosuke Komori +7 more 2023-10-17
11729973 Semiconductor memory Masayoshi Tagami, Jun Iijima, Kazuyuki Higashi 2023-08-15
11574926 Non-volatile semiconductor storage device and method of manufacturing the same Yoshiaki Fukuzumi, Masaru Kidoh, Masaru Kito, Hiroyasu Tanaka, Yosuke Komori +2 more 2023-02-07
11552095 Semiconductor memory having first and second memory cell regions separated by a third region along a bit line direction Tomoo Hishida, Sadatoshi Murakami, Masao Iwase 2023-01-10
RE49152 Nonvolatile semiconductor memory device and method for driving same Hideaki Aochi, Hiroyasu Tanaka, Masaru Kito, Yoshiaki Fukuzumi, Masaru Kidoh +7 more 2022-07-26
11393840 Non-volatile semiconductor storage device and method of manufacturing the same Yoshiaki Fukuzumi, Masaru Kidoh, Masaru Kito, Hiroyasu Tanaka, Yosuke Komori +2 more 2022-07-19
11374021 Manufacturing method of a nonvolatile semiconductor memory device Masaru Kito, Hideaki Aochi, Akihiro Nitayama, Masaru Kidoh, Hiroyasu Tanaka +3 more 2022-06-28
11362106 Manufacturing method of a nonvolatile semiconductor memory device Masaru Kito, Hideaki Aochi, Akihiro Nitayama, Masaru Kidoh, Hiroyasu Tanaka +3 more 2022-06-14
11342348 Non-volatile semiconductor memory device and manufacturing method thereof Yoshihiro Akutsu 2022-05-24
11270980 Memory device Masayoshi Tagami, Jun Iijima, Tetsuya Shimizu, Takamasa Usui, Genki Fujita 2022-03-08