Growing community of inventors

Yokohama, Japan

Ryota Katsumata

Average Co-Inventor Count = 5.35

ph-index = 31

The patent ph-index is calculated by counting the number of publications for which an author has been cited by other authors at least that same number of times.

Forward Citations = 4,305

Ryota KatsumataMasaru Kito (131 patents)Ryota KatsumataHideaki Aochi (130 patents)Ryota KatsumataMasaru Kidoh (125 patents)Ryota KatsumataHiroyasu Tanaka (117 patents)Ryota KatsumataYoshiaki Fukuzumi (111 patents)Ryota KatsumataMegumi Ishiduki (81 patents)Ryota KatsumataYosuke Komori (73 patents)Ryota KatsumataYasuyuki Matsuoka (35 patents)Ryota KatsumataRyouhei Kirisawa (34 patents)Ryota KatsumataTomoko Fujiwara (34 patents)Ryota KatsumataJunya Matsunami (29 patents)Ryota KatsumataMitsuru Sato (27 patents)Ryota KatsumataYoshimasa Mikajiri (26 patents)Ryota KatsumataShigeto Oota (26 patents)Ryota KatsumataAkihiro Nitayama (17 patents)Ryota KatsumataMasayoshi Tagami (12 patents)Ryota KatsumataTomoo Hishida (12 patents)Ryota KatsumataJun Iijima (11 patents)Ryota KatsumataMasao Iwase (9 patents)Ryota KatsumataSadatoshi Murakami (9 patents)Ryota KatsumataKazuyuki Higashi (8 patents)Ryota KatsumataYoshihiro Akutsu (8 patents)Ryota KatsumataYoshihisa Iwata (6 patents)Ryota KatsumataTakamasa Usui (5 patents)Ryota KatsumataKiyotaro Itagaki (5 patents)Ryota KatsumataTetsuya Shimizu (5 patents)Ryota KatsumataGenki Fujita (5 patents)Ryota KatsumataMasaru Kido (4 patents)Ryota KatsumataMasaki Kondo (3 patents)Ryota KatsumataTakashi Maeda (2 patents)Ryota KatsumataTadashi Iguchi (2 patents)Ryota KatsumataNobutoshi Aoki (2 patents)Ryota KatsumataKeisuke Nakatsuka (2 patents)Ryota KatsumataTetsuaki Utsumi (2 patents)Ryota KatsumataYoshitaka Kubota (2 patents)Ryota KatsumataYoshiro Shimojo (2 patents)Ryota KatsumataToru Matsuda (2 patents)Ryota KatsumataHitoshi Ito (2 patents)Ryota KatsumataSanae Ito (2 patents)Ryota KatsumataAtsushi Konno (2 patents)Ryota KatsumataTomo Ohsawa (2 patents)Ryota KatsumataSoichiro Kitazaki (2 patents)Ryota KatsumataFumitaka Arai (1 patent)Ryota KatsumataRiichiro Shirota (1 patent)Ryota KatsumataYoshio Ozawa (1 patent)Ryota KatsumataTakashi Shimizu (1 patent)Ryota KatsumataKatsuyuki Sekine (1 patent)Ryota KatsumataRajarao Jammy (1 patent)Ryota KatsumataNaoki Yasuda (1 patent)Ryota KatsumataNobuo Hayasaka (1 patent)Ryota KatsumataJohnathan E Faltermeier (1 patent)Ryota KatsumataKeitaro Imai (1 patent)Ryota KatsumataViraj Yashawant Sardesai (1 patent)Ryota KatsumataHiroaki Hazama (1 patent)Ryota KatsumataJoseph Francis Shepard, Jr (1 patent)Ryota KatsumataHideshi Miyajima (1 patent)Ryota KatsumataIwao Higashikawa (1 patent)Ryota KatsumataMasaaki Higuchi (1 patent)Ryota KatsumataYoshihiro Uozumi (1 patent)Ryota KatsumataHiroshi Shinohara (1 patent)Ryota KatsumataToshiharu Tanaka (1 patent)Ryota KatsumataToshiyuki Enda (1 patent)Ryota KatsumataHisataka Meguro (1 patent)Ryota KatsumataKazumichi Tsumura (1 patent)Ryota KatsumataHiroyoshi Tanimoto (1 patent)Ryota KatsumataDaigo Ichinose (1 patent)Ryota KatsumataHideki Inokuma (1 patent)Ryota KatsumataNaoki Yamamoto (1 patent)Ryota KatsumataTakuji Kuniya (1 patent)Ryota KatsumataNaoki Kusunoki (1 patent)Ryota KatsumataYu Hirotsu (1 patent)Ryota KatsumataJean-Marc Rousseau (1 patent)Ryota KatsumataRyu Kato (1 patent)Ryota KatsumataYoichi Takegawa (1 patent)Ryota KatsumataHitomi Yasutake (1 patent)Ryota KatsumataShinya Takahashi (1 patent)Ryota KatsumataHiromitsu Iino (1 patent)Ryota KatsumataMasaki Hotta (1 patent)Ryota KatsumataYusuke Ochi (1 patent)Ryota KatsumataMasahiro Fukuda (1 patent)Ryota KatsumataKazuhide Takamura (1 patent)Ryota KatsumataRyota Katsumata (188 patents)Masaru KitoMasaru Kito (206 patents)Hideaki AochiHideaki Aochi (215 patents)Masaru KidohMasaru Kidoh (131 patents)Hiroyasu TanakaHiroyasu Tanaka (207 patents)Yoshiaki FukuzumiYoshiaki Fukuzumi (290 patents)Megumi IshidukiMegumi Ishiduki (100 patents)Yosuke KomoriYosuke Komori (80 patents)Yasuyuki MatsuokaYasuyuki Matsuoka (37 patents)Ryouhei KirisawaRyouhei Kirisawa (73 patents)Tomoko FujiwaraTomoko Fujiwara (49 patents)Junya MatsunamiJunya Matsunami (40 patents)Mitsuru SatoMitsuru Sato (148 patents)Yoshimasa MikajiriYoshimasa Mikajiri (40 patents)Shigeto OotaShigeto Oota (36 patents)Akihiro NitayamaAkihiro Nitayama (54 patents)Masayoshi TagamiMasayoshi Tagami (29 patents)Tomoo HishidaTomoo Hishida (25 patents)Jun IijimaJun Iijima (24 patents)Masao IwaseMasao Iwase (24 patents)Sadatoshi MurakamiSadatoshi Murakami (16 patents)Kazuyuki HigashiKazuyuki Higashi (66 patents)Yoshihiro AkutsuYoshihiro Akutsu (12 patents)Yoshihisa IwataYoshihisa Iwata (175 patents)Takamasa UsuiTakamasa Usui (50 patents)Kiyotaro ItagakiKiyotaro Itagaki (21 patents)Tetsuya ShimizuTetsuya Shimizu (6 patents)Genki FujitaGenki Fujita (5 patents)Masaru KidoMasaru Kido (4 patents)Masaki KondoMasaki Kondo (47 patents)Takashi MaedaTakashi Maeda (174 patents)Tadashi IguchiTadashi Iguchi (49 patents)Nobutoshi AokiNobutoshi Aoki (49 patents)Keisuke NakatsukaKeisuke Nakatsuka (49 patents)Tetsuaki UtsumiTetsuaki Utsumi (34 patents)Yoshitaka KubotaYoshitaka Kubota (34 patents)Yoshiro ShimojoYoshiro Shimojo (25 patents)Toru MatsudaToru Matsuda (16 patents)Hitoshi ItoHitoshi Ito (12 patents)Sanae ItoSanae Ito (8 patents)Atsushi KonnoAtsushi Konno (3 patents)Tomo OhsawaTomo Ohsawa (3 patents)Soichiro KitazakiSoichiro Kitazaki (2 patents)Fumitaka AraiFumitaka Arai (200 patents)Riichiro ShirotaRiichiro Shirota (185 patents)Yoshio OzawaYoshio Ozawa (173 patents)Takashi ShimizuTakashi Shimizu (147 patents)Katsuyuki SekineKatsuyuki Sekine (80 patents)Rajarao JammyRajarao Jammy (77 patents)Naoki YasudaNaoki Yasuda (73 patents)Nobuo HayasakaNobuo Hayasaka (70 patents)Johnathan E FaltermeierJohnathan E Faltermeier (65 patents)Keitaro ImaiKeitaro Imai (62 patents)Viraj Yashawant SardesaiViraj Yashawant Sardesai (58 patents)Hiroaki HazamaHiroaki Hazama (49 patents)Joseph Francis Shepard, JrJoseph Francis Shepard, Jr (42 patents)Hideshi MiyajimaHideshi Miyajima (34 patents)Iwao HigashikawaIwao Higashikawa (28 patents)Masaaki HiguchiMasaaki Higuchi (28 patents)Yoshihiro UozumiYoshihiro Uozumi (25 patents)Hiroshi ShinoharaHiroshi Shinohara (23 patents)Toshiharu TanakaToshiharu Tanaka (23 patents)Toshiyuki EndaToshiyuki Enda (20 patents)Hisataka MeguroHisataka Meguro (19 patents)Kazumichi TsumuraKazumichi Tsumura (17 patents)Hiroyoshi TanimotoHiroyoshi Tanimoto (17 patents)Daigo IchinoseDaigo Ichinose (16 patents)Hideki InokumaHideki Inokuma (10 patents)Naoki YamamotoNaoki Yamamoto (10 patents)Takuji KuniyaTakuji Kuniya (10 patents)Naoki KusunokiNaoki Kusunoki (8 patents)Yu HirotsuYu Hirotsu (7 patents)Jean-Marc RousseauJean-Marc Rousseau (6 patents)Ryu KatoRyu Kato (5 patents)Yoichi TakegawaYoichi Takegawa (5 patents)Hitomi YasutakeHitomi Yasutake (2 patents)Shinya TakahashiShinya Takahashi (2 patents)Hiromitsu IinoHiromitsu Iino (2 patents)Masaki HottaMasaki Hotta (1 patent)Yusuke OchiYusuke Ochi (1 patent)Masahiro FukudaMasahiro Fukuda (1 patent)Kazuhide TakamuraKazuhide Takamura (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Kabushiki Kaisha Toshiba (134 from 52,633 patents)

2. Kioxia Corporation (27 from 2,672 patents)

3. Toshiba Memory Corporation (26 from 2,955 patents)

4. International Business Machines Corporation (1 from 163,870 patents)


188 patents:

1. 12426268 - Semiconductor memory having memory cell regions and other regions alternately along a bit line direction

2. 12414299 - Nonvolatile semiconductor memory device and manufacturing method thereof

3. 12356622 - Nonvolatile semiconductor memory device and method for manufacturing same

4. 12272676 - Memory device

5. RE50330 - Nonvolatile semiconductor memory device and method for driving same

6. 12232325 - Semiconductor storage device

7. 12232315 - Semiconductor storage device

8. 12089409 - Semiconductor memory

9. 12063779 - Non-volatile semiconductor memory device and manufacturing method thereof

10. 12058862 - Non-volatile semiconductor storage device and method of manufacturing the same

11. 11974439 - Semiconductor memory having memory cell regions and other regions alternately arranged along a bit line direction

12. 11903205 - Method for reading data of a first memory cell transistor of a nonvolatile semiconductor memory device

13. 11903207 - Method for writing data of a first memory cell transistor of a nonvolatile semiconductor memory device

14. 11844218 - Non-volatile semiconductor storage device and method of manufacturing the same

15. 11817428 - Memory device

Please report any incorrect information to support@idiyas.com
idiyas.com
as of
10/28/2025
Loading…