Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10189112 | Welding equipment for metallic materials and method for welding metallic materials | Takahiko Kanai, Munehisa Hatta, Fumiaki Ikuta, Kazuhiro Kawasaki, Eizaburo Nakanishi +3 more | 2019-01-29 |
| 9498840 | Welding structural part and welding method of the same | Takahiko Kanai, Munehisa Hatta, Fumiaki Ikuta, Kazuhiro Kawasaki, Eizaburou Nakanishi +3 more | 2016-11-22 |
| 9079266 | Welding equipment for metallic materials and method for welding metallic materials | Takahiko Kanai, Munehisa Hatta, Fumiaki Ikuta, Kazuhiro Kawasaki, Eizaburo Nakanishi +3 more | 2015-07-14 |
| 8932416 | High-strength and high-ductility die-quenched parts and method of manufacturing the same | Eizaburou Nakanishi, Masayuki Miyake, Masao Hayakawa, Takehito Itagaki, Takahiko Kanai +2 more | 2015-01-13 |
| 8070888 | High strength formed article comprising hyperfine grain structure steel and manufacturing method of the same | Shiro Torizuka, Eijrio Muramatsu | 2011-12-06 |
| 7727343 | Controlled warm-rolling method | Shiro Torizuka | 2010-06-01 |
| 7647804 | Large strain-introducing working method and caliber rolling device | Tadanobu Inoue, Shiro Torizuka, Eijiro Muramatsu | 2010-01-19 |
| 6572716 | Fine ferrite-based structure steel production method | Tohru Hayashi, Shiro Torizuka, Kaneaki Tsuzaki, Osamu Umezawa | 2003-06-03 |
| 6464807 | Production method of ultra fine grain steel | Shiro Torizuka, Osamu Umezawa, Kaneaki Tsuzaki | 2002-10-15 |
| 6332905 | High-strength metal solidified material and acid steel and manufacturing methods thereof | Minoru Ootaguchi, Shuji Wanikawa, Yuji Muramatsu, Kaneaki Tsuzaki, Toru Hayashi | 2001-12-25 |
| 6287397 | High strength phosphorus-containing steel and method for producing the same | Toshihiro Hanamura, Hiroshi Nakajima, Shiro Torizuka, Kaneaki Tsuzaki | 2001-09-11 |
| 6221178 | Ultra-fine grain steel and method for producing it | Shiro Torizuka, Kaneaki Tsuzaki, Osamu Umezawa | 2001-04-24 |
| 6129791 | Oxides dispersion steel and making process thereof | Hiroshi Nakajima, Shiro Torizuka, Kaneaki Tsuzaki | 2000-10-10 |