Issued Patents All Time
Showing 26–39 of 39 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7556678 | Gas generator | Hiroshi Hayakawa, Noriyuki Tanaka, Jiro Hiraiwa, Tetsuro Tojo | 2009-07-07 |
| 7550906 | Spark plug having a noble-metal chip and method for manufacturing the same | Wataru Matsutani | 2009-06-23 |
| 7382084 | Spark plug having a precious metal tip | Wataru Matsutani, Yoshihiro Matsubara, Kenji Nunome | 2008-06-03 |
| 7351322 | Fluorine gas generator and method of electrolytic bath liquid level control | Jiro Hiraiwa, Tetsuro Tojo | 2008-04-01 |
| 7343924 | System for supplying halogen gas or halogen containing gas and method thereof | Tetsuro Tojo, Jiro Hiraiwa | 2008-03-18 |
| 7336024 | Spark plug | Yoshihiro Matsubara | 2008-02-26 |
| 7316765 | Apparatus and method for molten salt electrolytic bath control | Tetsuro Tojo, Jiro Hiraiwa | 2008-01-08 |
| 7288180 | Electric current control method and apparatus for use in gas generators | Tetsuro Tojo, Jiro Hiraiwa | 2007-10-30 |
| 7288879 | Spark plug having ground electrode including precious metal alloy portion containing first, second and third components | Wataru Matsutani, Yoshihiro Matsubara | 2007-10-30 |
| 7279827 | Spark plug with electrode including precious metal | Kenji Nunome, Wataru Matsutani, Yoshihiro Matsubara | 2007-10-09 |
| 7164225 | Small size spark plug having side spark prevention | Wataru Matsutani | 2007-01-16 |
| 7131191 | Method for manufacturing noble metal electric discharge chips for spark plugs | Wataru Matsutani, Yoshihiro Matsubara | 2006-11-07 |
| 6864622 | Spark plug | Wataru Matsutani, Masayuki Segawa, Satoko Ito | 2005-03-08 |
| 5894696 | Method of and apparatus for supplying a solution for raising of terrestrial plants | Shigeru Ando, Minehiro Kamiyama, Megumu Dohi, Tetsuro Tojo | 1999-04-20 |