Issued Patents All Time
Showing 51–63 of 63 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7839240 | Reflection-type banpass filter | — | 2010-11-23 |
| 7831121 | Extended triangular lattice type photonic bandgap fiber | Katsuhiro Takenaga, Kuniharu Himeno | 2010-11-09 |
| 7817257 | Method for measuring a differential mode delay of a multimode optical fiber | Katsuhiro Takenaga, Shoichiro Matsuo, Kuniharu Himeno, Koichi Harada | 2010-10-19 |
| 7593611 | Photonic band gap fiber and method of producing the same | Katsuhiro Takenaga, Kuniharu Himeno | 2009-09-22 |
| 7551824 | Extended triangular lattice type photonic bandgap fiber | Katsuhiro Takenaga, Kuniharu Himeno | 2009-06-23 |
| 7412128 | Higher order mode dispersion compensating fiber and mode converter for higher order fiber | Kazuhiko Aikawa, Masashi Ikeda, Kuniharu Himeno, Koichi Harada | 2008-08-12 |
| 7406235 | Graded-index multimode fiber and manufacturing method therefor | Katsuhiro Takenaga, Kuniharu Himeno | 2008-07-29 |
| 7292762 | Hole-assisted holey fiber and low bending loss multimode holey fiber | Katsuhiro Takenaga, Katsuaki Izoe, Kazuhiko Aikawa, Kuniharu Himeno | 2007-11-06 |
| 7267495 | Connection method and connecting structure for photonic crystal fiber | Ryuji Suzuki, Kazuhiko Aikawa, Kuniharu Himeno | 2007-09-11 |
| 7263267 | Higher order mode dispersion compensating fiber and mode converter for higher order fiber | Kazuhiko Aikawa, Masashi Ikeda, Kuniharu Himeno, Koichi Harada | 2007-08-28 |
| 7242870 | Wavelength division multiplexing system | Katsuhiro Takenaga, Kuniharu Himeno | 2007-07-10 |
| 7139457 | Method for compensating modal dispersion in multimode optical fiber transmission path | Shinji Habu, Katsuhiro Takenaga, Kuniharu Himeno, Koichi Harada | 2006-11-21 |
| 7043126 | Graded-index multimode fiber and manufacturing method therefor | Katsuhiro Takenaga, Kuniharu Himeno | 2006-05-09 |