Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9108246 | Method for mixing raw material powder for powder metallurgy and method for producing raw material powder for powder metallurgy | Yoshiaki Maeda, Kiyoshi Makino, Kotaro Okawa, Kuniaki Ogura, Yukiko Ozaki | 2015-08-18 |
| 5108492 | Corrosion-resistant sintered alloy steels and method for making same | Yoshisato Kiyota, Hiroshi Ohtsubo, Junichi Ohta, Masakazu Matsushita | 1992-04-28 |
| 4954171 | Composite alloy steel powder and sintered alloy steel | Shigeaki Takajo, Osamu Furukimi, Kuniaki Ogura, Keiichi Maruta, Teruyoshi Abe | 1990-09-04 |
| 4266974 | Alloy steel powder having excellent compressibility, moldability and heat-treatment property | Minoru Nitta, Yoshihiro Kajinaga, Kuniaki Ogura, Shunji Ito | 1981-05-12 |
| 4234168 | Apparatus for producing low-oxygen iron-base metallic powder | Yoshihiro Kajinaga, Minoru Nitta, Shunji Ito | 1980-11-18 |
| 4223874 | Shaft furnace for producing low-oxygen iron-base metallic powder for powder metallurgy | Yoshihiro Kajinaga, Minoru Nitta, Shunji Ito | 1980-09-23 |
| 4209320 | Process for producing low-oxygen iron-base metallic powder | Yoshihiro Kajinaga, Minoru Nitta, Shunji Ito | 1980-06-24 |