Issued Patents All Time
Showing 1–25 of 42 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12033676 | Magnetic head and magnetic recording device | Yuji Nakagawa, Naoyuki Narita, Masayuki Takagishi, Tomoyuki Maeda, Tazumi Nagasawa | 2024-07-09 |
| 11705152 | Magnetic head and magnetic recording device including a stacked body having a first magnetic member and a second magnetic member | Hitoshi Iwasaki, Naoyuki Narita, Masayuki Takagishi, Tazumi Nagasawa | 2023-07-18 |
| 11615808 | Magnetic head and magnetic recording device | Yuji Nakagawa, Naoyuki Narita, Masayuki Takagishi, Tomoyuki Maeda, Tazumi Nagasawa | 2023-03-28 |
| 11568890 | Magnetic recording device and magnetic recording method utilizing assisted magnetic recording | Tazumi Nagasawa, Masayuki Takagishi, Naoyuki Narita, Tomoyuki Maeda, Hitoshi Iwasaki | 2023-01-31 |
| 11521644 | Magnetic head and magnetic recording device | Yuji Nakagawa, Naoyuki Narita, Masayuki Takagishi, Tomoyuki Maeda, Tazumi Nagasawa | 2022-12-06 |
| 11495250 | Magnetic recording device including a magnetic head including a stacked body between magnetic poles | Hitoshi Iwasaki, Naoyuki Narita, Masayuki Takagishi, Tazumi Nagasawa | 2022-11-08 |
| 11488623 | Evaluation method of magnetic head and evaluation device of magnetic head | Tazumi Nagasawa, Masayuki Takagishi, Naoyuki Narita, Tomoyuki Maeda | 2022-11-01 |
| 11462239 | Magnetic head and magnetic recording device having magnetic layers and nonmagnetic layers between shield and magnetic pole | Tazumi Nagasawa, Naoyuki Narita, Masayuki Takagishi, Tomoyuki Maeda | 2022-10-04 |
| 11443762 | Magnetic head and magnetic recording device including a stacked body having a first magnetic member and a second magnetic member | Hitoshi Iwasaki, Naoyuki Narita, Masayuki Takagishi, Tazumi Nagasawa | 2022-09-13 |
| 11437059 | Magnetic head and magnetic recording device with stacked body material configurations | Hitoshi Iwasaki, Masayuki Takagishi, Naoyuki Narita, Tazumi Nagasawa | 2022-09-06 |
| 11398244 | Magnetic head with stacked body having non-magnetic layers and differing length magnetic layers | Masayuki Takagishi, Naoyuki Narita, Tomoyuki Maeda, Tazumi Nagasawa, Hitoshi Iwasaki | 2022-07-26 |
| 11393493 | Magnetic head and magnetic recording device | Yuji Nakagawa, Naoyuki Narita, Masayuki Takagishi, Tomoyuki Maeda, Tazumi Nagasawa +1 more | 2022-07-19 |
| 11380352 | Magnetic head including stacked body with changing electrical resistance and magnetic recording device including same | Hitoshi Iwasaki, Masayuki Takagishi, Naoyuki Narita, Tazumi Nagasawa | 2022-07-05 |
| 11348606 | Magnetic head for high density magnetic recording device | Hitoshi Iwasaki, Naoyuki Narita, Masayuki Takagishi, Tazumi Nagasawa | 2022-05-31 |
| 11217272 | Magnetic head including stacked body having plural of intermediate layers and magnetic recording device including same | Naoyuki Narita, Tazumi Nagasawa, Masayuki Takagishi, Hitoshi Iwasaki | 2022-01-04 |
| 11138994 | Magnetic head and magnetic recording device having magnetic layers and non-magnetic layers between shield and magnetic pole | Tazumi Nagasawa, Naoyuki Narita, Masayuki Takagishi, Tomoyuki Maeda | 2021-10-05 |
| 11087781 | Magnetic head including plural magnetic layers and plural intermediate layers and magnetic recording device | Masayuki Takagishi, Naoyuki Narita, Tomoyuki Maeda, Hitoshi Iwasaki, Tazumi Nagasawa | 2021-08-10 |
| 11062728 | Magnetic head having specific distance between magnetic pole, stacked body, and first shield, and magnetic recording device including same | Masayuki Takagishi, Naoyuki Narita, Tomoyuki Maeda, Tazumi Nagasawa, Katsuya Sugawara | 2021-07-13 |
| 11062730 | Method for evaluating magnetic head and evaluation apparatus of magnetic head | Naoyuki Narita, Tazumi Nagasawa, Masayuki Takagishi, Tomoyuki Maeda | 2021-07-13 |
| 11004464 | Magnetic head | Naoyuki Narita, Tazumi Nagasawa, Masayuki Takagishi, Hitoshi Iwasaki, Tomoyuki Maeda | 2021-05-11 |
| 10978098 | Magnetic recording device | Naoyuki Narita, Masayuki Takagishi, Hitoshi Iwasaki, Tazumi Nagasawa, Tomoyuki Maeda | 2021-04-13 |
| 10950259 | Magnetic head and magnetic recording and reproducing device | Naoyuki Narita, Tomoyuki Maeda | 2021-03-16 |
| 10902869 | Magnetic head having a magnetic layer and first and second conductive layers provided between a shield and a magnetic pole and magnetic recording and reproducing device | Naoyuki Narita, Tazumi Nagasawa, Masayuki Takagishi, Tomoyuki Maeda | 2021-01-26 |
| 10811037 | Magnetic head with conductive layer configurations between magnetic pole and shield and magnetic recording and reproducing device | Naoyuki Narita, Tazumi Nagasawa, Masayuki Takagishi, Tomoyuki Maeda | 2020-10-20 |
| 10734017 | Magnetic head and magnetic recording and reproducing device | Naoyuki Narita, Tomoyuki Maeda | 2020-08-04 |