Issued Patents All Time
Showing 1–25 of 84 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8759190 | Current steering element and non-volatile memory element incorporating current steering element | Ryoko Miyanaga, Takumi Mikawa, Yukio Hayakawa, Takeki Ninomiya | 2014-06-24 |
| 8709939 | Semiconductor device having a multilevel interconnect structure and method for fabricating the same | Junichi Koike, Yoshito Fujii, Jun Iijima, Noriyoshi Shimizu, Kazuyoshi Maekawa +2 more | 2014-04-29 |
| 8563962 | Memory device and method of manufacturing the same | Takumi Mikawa | 2013-10-22 |
| 8537605 | Nonvolatile semiconductor memory device having coplanar surfaces at resistance variable layer and wiring layer and manufacturing method thereof | Takumi Mikawa, Yoshio Kawashima, Takeki Ninomiya | 2013-09-17 |
| 8482958 | Current steering element, memory element, memory, and method of manufacturing current steering element | Yukio Hayakawa, Takumi Mikawa, Takeki Ninomiya | 2013-07-09 |
| 8445886 | Nonvolatile memory element, nonvolatile memory device, nonvolatile semiconductor device, and method of manufacturing nonvolatile memory element | Satoru Fujii, Satoru Mitani, Takumi Mikawa | 2013-05-21 |
| 8441060 | Nonvolatile memory element and nonvolatile memory device incorporating nonvolatile memory element | Takeki Ninomiya, Takumi Mikawa, Satoru Fujii | 2013-05-14 |
| 8422268 | Current control element, memory element, and fabrication method thereof | Takumi Mikawa, Mitsuteru Iijima, Takashi Okada | 2013-04-16 |
| 8394669 | Resistance variable element and resistance variable memory device | Takumi Mikawa, Atsushi Himeno, Yoshio Kawashima, Kenji Tominaga | 2013-03-12 |
| 8355274 | Current steering element, storage element, storage device, and method for manufacturing current steering element | Takumi Mikawa, Mitsuteru Iijima, Kenji Tominaga | 2013-01-15 |
| 8351244 | Memory cell array, nonvolatile storage device, memory cell, and method of manufacturing memory cell array | Takashi Okada, Takumi Mikawa | 2013-01-08 |
| 8304908 | Semiconductor device having a multilevel interconnect structure and method for fabricating the same | Junichi Koike, Yoshito Fujii, Jun Iijima, Noriyoshi Shimizu, Kazuyoshi Maekawa +2 more | 2012-11-06 |
| 8295123 | Current rectifying element, memory device incorporating current rectifying element, and fabrication method thereof | Takeshi Takagi, Takumi Mikawa, Mitsuteru Iijima, Takashi Okada | 2012-10-23 |
| 8038864 | Method of fabricating semiconductor device, and plating apparatus | Ryohei Kitao | 2011-10-18 |
| 7981760 | Method for manufacturing nonvolatile storage element and method for manufacturing nonvolatile storage device | Yoshio Kawashima, Takumi Mikawa, Takeshi Takagi | 2011-07-19 |
| 7960770 | Nonvolatile memory element array with storing layer formed by resistance variable layers | Takumi Mikawa, Takeshi Takagi, Yoshio Kawashima | 2011-06-14 |
| 7833901 | Method for manufacturing a semiconductor device having a multi-layered insulating structure of SiOCH layers and an SiO2 layer | Koichi Ohto, Tatsuya Usami, Noboru Morita, Sadayuki Ohnishi, Ryohei Kitao +1 more | 2010-11-16 |
| 7800229 | Semiconductor device and method for manufacturing same | Akira Furuya, Tetsuya Kurokawa, Kaori Noda | 2010-09-21 |
| 7563705 | Manufacturing method of semiconductor device | Takashi TONEGAWA, Tatsuya Usami, Noboru Morita, Koichi Ohto, Yoichi Sasaki +2 more | 2009-07-21 |
| 7388291 | Semiconductor device and method of fabricating the same | Tetsuya Kurokawa | 2008-06-17 |
| 7341937 | Semiconductor device and method of manufacturing same | Masayoshi Tagami, Hidenobu Miyamoto | 2008-03-11 |
| 7229916 | Method of manufacturing a semiconductor device | Ryohei Kitao | 2007-06-12 |
| 7132732 | Semiconductor device having two distinct sioch layers | Koichi Ohto, Tatsuya Usami, Noboru Morita, Sadayuki Ohnishi, Ryohei Kitao +1 more | 2006-11-07 |
| 7074698 | Method of fabricating semiconductor device using plasma-enhanced CVD | Noboru Morita, Tatsuya Usami, Koichi Ohto, Sadayuki Ohnishi, Ryohei Kitao +1 more | 2006-07-11 |
| 6989328 | Method of manufacturing semiconductor device having damascene interconnection | Kaoru Mikagi, Ryohei Kitao | 2006-01-24 |