Issued Patents All Time
Showing 1–18 of 18 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5556483 | Method of carburizing austenitic metal | Masaaki Tahara, Haruo Senbokuya, Kenzo Kitano, Tadashi Hayashida | 1996-09-17 |
| 5505791 | Process of producing nitrided and hardened nickel alloy products | Masaaki Tahara, Haruo Senbokuya, Kenzo Kitano, Tadashi Hayashida | 1996-04-09 |
| 5460875 | Hard austenitic stainless steel screw and a method for manufacturing the same | Akira Yoshino, Masaaki Tahara, Haruo Senbokuya, Kenzo Kitano | 1995-10-24 |
| 5447181 | Loom guide bar blade with its surface nitrided for hardening | Masaaki Tahara, Haruo Senbokuya, Kenzo Kitano, Tadashi Hayashida | 1995-09-05 |
| 5445683 | Nickel alloy products with their surfaces nitrided and hardened | Masaaki Tahara, Haruo Senbokuya, Kenzo Kitano, Tadashi Hayashida | 1995-08-29 |
| 5419948 | Hard austenitic stainless steel screw and a method for manufacturing the same | Akira Yoshino, Masaaki Tahara, Haruo Senbokuya, Kenzo Kitano | 1995-05-30 |
| 5417776 | Hard austenitic stainless steel screw | Akira Yoshino, Masaaki Tahara, Haruo Senbokuya, Kenzo Kitano | 1995-05-23 |
| 5403409 | Nitrided stainless steel products | Masaaki Tahara, Haruo Senbokuya, Kenzo Kitano, Tadashi Hayashida | 1995-04-04 |
| 5382318 | Hard austenitic stainless steel screw and a method for manufacturing the same | Masaaki Tahara, Haruo Senbokuya, Kenzo Kitano | 1995-01-17 |
| 5376188 | Method of nitriding austenitic stainless steel products | Masaaki Tahara, Haruo Senbokuya, Kenzo Kitano, Tadashi Hayashida | 1994-12-27 |
| 5340412 | Method of fluorinated nitriding of austenitic stainless steel screw | Akira Yoshino, Massaki Tahara, Haruo Senbokuya, Kenzo Kitano | 1994-08-23 |
| 5254181 | Method of nitriding steel utilizing fluoriding | Akira Yoshino, Masaki Tahara, Haruo Senbokuya, Kenzo Kitano | 1993-10-19 |
| 5252145 | Method of nitriding nickel alloy | Masaaki Tahara, Haruo Senbokuya, Kenzo Kitano, Tadashi Hayashida | 1993-10-12 |
| 5194097 | Method of nitriding steel and heat treat furnaces used therein | Masaaki Tahara, Haruo Senbokuya, Kenzo Kitano | 1993-03-16 |
| 5141567 | Method of nitriding steel | Masaaki Tahara, Takakazu Tomoda, Kenzo Kitano | 1992-08-25 |
| 5114500 | Nitriding furnace apparatus and method | Masaaki Tahara, Haruo Senbokuya, Kenzo Kitano | 1992-05-19 |
| 5112030 | Heat treat furnace for fluorinating steel material | Masaaki Tahara, Haruo Senbokuya, Kenzo Kitano | 1992-05-12 |
| 5013371 | Method of nitriding steel | Masaaki Tahara, Takakazu Tomoda, Kenzo Kitano | 1991-05-07 |