Issued Patents All Time
Showing 26–50 of 131 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9601503 | Nonvolatile semiconductor memory device and method for manufacturing same | Yoshiaki Fukuzumi, Ryota Katsumata, Masaru Kito, Hiroyasu Tanaka, Yosuke Komori +7 more | 2017-03-21 |
| 9356042 | Non-volatile semiconductor storage device and method of manufacturing the same | Yoshiaki Fukuzumi, Ryota Katsumata, Masaru Kito, Hiroyasu Tanaka, Yosuke Komori +2 more | 2016-05-31 |
| 9318503 | Nonvolatile semiconductor memory device and method for manufacturing same | Yoshiaki Fukuzumi, Ryota Katsumata, Masaru Kito, Hiroyasu Tanaka, Yosuke Komori +7 more | 2016-04-19 |
| 9312134 | Nonvolatile semiconductor memory device and method for manufacturing same | Yoshiaki Fukuzumi, Ryota Katsumata, Masaru Kito, Hiroyasu Tanaka, Yosuke Komori +7 more | 2016-04-12 |
| RE45840 | Nonvolatile semiconductor memory device and method for driving same | Ryota Katsumata, Hideaki Aochi, Hiroyasu Tanaka, Masaru Kito, Yoshiaki Fukuzumi +7 more | 2016-01-12 |
| 9159613 | Non-volatile memory device, method for fabricating pattern on wafer and method for manufacturing non-volatile memory device using same | Yoshihiro Akutsu, Tsuneo Uenaka, Tadashi Iguchi | 2015-10-13 |
| 9076820 | Method for manufacturing semiconductor device and semiconductor device | Soichiro Kitazaki, Mitsuru Sato, Ryota Katsumata, Tadashi Iguchi | 2015-07-07 |
| 9064735 | Nonvolatile semiconductor memory device and manufacturing method thereof | Masaru Kito, Hideaki Aochi, Ryota Katsumata, Akihiro Nitayama, Hiroyasu Tanaka +3 more | 2015-06-23 |
| 9035374 | Non-volatile semiconductor storage device and method of manufacturing the same | Yoshiaki Fukuzumi, Ryota Katsumata, Masaru Kito, Hiroyasu Tanaka, Yosuke Komori +2 more | 2015-05-19 |
| 9029934 | Nonvolatile semiconductor memory device including floating gate electrodes formed between control gate electrodes and vertically formed along a semiconductor pillar | Masaru Kito, Tomoko Fujiwara, Yosuke Komori, Megumi Ishiduki, Hiroyasu Tanaka +5 more | 2015-05-12 |
| 8946809 | Method for manufacturing semiconductor memory device and semiconductor memory device | Kazuhide Takamura, Ryota Katsumata, Yoshihiro Uozumi, Daigo Ichinose, Toru Matsuda | 2015-02-03 |
| 8916921 | Non-volatile semiconductor storage device including a dielectric with low permittivity in memory cells arranged in a three dimensional manner | Hiroyasu Tanaka, Hideaki Aochi, Ryota Katsumata, Masaru Kito, Yoshiaki Fukuzumi +2 more | 2014-12-23 |
| 8890235 | Nonvolatile semiconductor memory device and method for manufacturing same | Yoshiaki Fukuzumi | 2014-11-18 |
| 8884355 | Nonvolatile semiconductor memory device and method for manufacturing same | Yosuke Komori, Hideaki Aochi, Ryota Katsumata, Masaru Kito, Yoshiaki Fukuzumi +6 more | 2014-11-11 |
| 8791464 | Nonvolatile semiconductor memory device and method for manufacturing same | Tomoko Fujiwara, Ryota Katsumata, Masaru Kito, Yoshiaki Fukuzumi, Hiroyasu Tanaka +6 more | 2014-07-29 |
| 8786008 | Nonvolatile semiconductor memory device and method for manufacturing the same | Megumi Ishiduki, Mitsuru Sato, Masaru Kito, Ryota Katsumata | 2014-07-22 |
| 8748971 | Three dimensional nonvolatile semiconductor memory having pillars provided inside an oblate through hole | Hiroyasu Tanaka, Hideaki Aochi, Ryota Katsumata, Masaru Kito, Yoshiaki Fukuzumi +5 more | 2014-06-10 |
| 8748300 | Semiconductor device and method for manufacturing same | Megumi Ishiduki, Ryota Katsumata, Tomo Ohsawa, Mitsuru Sato, Hiroyasu Tanaka | 2014-06-10 |
| 8729624 | Non-volatile semiconductor storage device and method of manufacturing the same | Yoshiaki Fukuzumi, Ryota Katsumata, Masaru Kito, Hiroyasu Tanaka, Yosuke Komori +2 more | 2014-05-20 |
| 8728919 | Non-volatile semiconductor storage device and method of manufacturing the same | Masaru Kito, Yoshiaki Fukuzumi, Megumi Ishiduki, Yosuke Komori, Hiroyasu Tanaka +2 more | 2014-05-20 |
| 8669608 | Method for manufacturing nonvolatile semiconductor storage device and nonvolatile semiconductor storage device | Mitsuru Sato, Megumi Ishiduki, Atsushi Konno, Yoshihiro Akutsu, Masaru Kito +2 more | 2014-03-11 |
| 8653577 | Nonvolatile semiconductor memory device | Yoshiaki Fukuzumi, Hiroyasu Tanaka, Yosuke Komori, Megumi Ishiduki, Masaru Kito +2 more | 2014-02-18 |
| 8654586 | Nonvolatile semiconductor memory device | Masaru Kito, Ryota Katsumata, Yoshiaki Fukuzumi, Hiroyasu Tanaka, Yosuke Komori +7 more | 2014-02-18 |
| 8653582 | Nonvolatile semiconductor memory device and method for manufacturing same | Yoshiaki Fukuzumi, Ryota Katsumata, Masaru Kito, Hiroyasu Tanaka, Yosuke Komori +7 more | 2014-02-18 |
| 8605508 | Non-volatile semiconductor storage device having control circuit to control voltages to select transistor for erase operation | Kiyotaro Itagaki, Yoshihisa Iwata, Hiroyasu Tanaka, Masaru Kito, Ryota Katsumata +4 more | 2013-12-10 |