Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12344910 | Duplex stainless steel, seamless steel pipe or tube, and a method of manufacturing the duplex stainless steel | Yusuke Yoshimura, Shunsuke Sasaki | 2025-07-01 |
| 12291766 | Stainless steel seamless pipe and method for manufacturing same | Masao Yuga | 2025-05-06 |
| 12234525 | Martensitic stainless steel seamless pipe for oil country tubular goods, and method for manufacturing same | Mami Endo, Masao Yuga | 2025-02-25 |
| 12221663 | Martensitic stainless steel seamless pipe for oil country tubular goods, and method for manufacturing same | Mami Endo, Masao Yuga | 2025-02-11 |
| 12098438 | Stainless steel seamless pipe | Masao Yuga | 2024-09-24 |
| 11827949 | Martensitic stainless steel seamless pipe for oil country tubular goods, and method for manufacturing same | Mami Endo, Masao Yuga | 2023-11-28 |
| 11773461 | Martensitic stainless steel seamless pipe for oil country tubular goods, and method for manufacturing same | Mami Endo, Masao Yuga | 2023-10-03 |
| 11566301 | Dual-phase stainless steel, and method of production thereof | Yusuke Yoshimura, Hiroki Ota, Masao Yuga, Kenichiro Eguchi | 2023-01-31 |
| 11401570 | Martensitic stainless steel seamless pipe for oil country tubular goods, and method for manufacturing same | Mami Endo, Masao Yuga | 2022-08-02 |
| 11306369 | High-strength stainless steel seamless pipe for oil country tubular goods, and method for producing same | Masao Yuga, Kenichiro Eguchi, Yasuhide Ishiguro | 2022-04-19 |
| 11286548 | High-strength stainless steel seamless pipe for oil country tubular goods, and method for manufacturing same | Masao Yuga, Kenichiro Eguchi, Yasuhide Ishiguro | 2022-03-29 |
| 11268161 | High strength seamless stainless steel pipe and method for producing same | Masao Yuga, Kenichiro Eguchi | 2022-03-08 |
| 4713638 | Polarized electromagnetic relay | Nobuo Mikami | 1987-12-15 |
| 4614927 | Polarized electromagnetic relay | Nobuo Mikami, Katsuto Kojima | 1986-09-30 |
| 4499442 | Transfer-type electromagnetic relay comprising a permanent magnet under a fixed contact stud | Nobuo Mikami, Kazutoshi Wakamatsu, Kunio Naito | 1985-02-12 |