Issued Patents All Time
Showing 1–23 of 23 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12269767 | Method for manufacturing optical fiber preform | — | 2025-04-08 |
| 12264097 | Manufacturing method for glass particulate deposit and burner | — | 2025-04-01 |
| 12065373 | Elongating method and elongating apparatus for glass base material | — | 2024-08-20 |
| 12046687 | Solar cell with high photoelectric conversion efficiency and method for manufacturing solar cell with high photoelectric conversion efficiency | Takenori Watabe, Hiroshi Hashigami, Hiroyuki Ohtsuka | 2024-07-23 |
| 11787725 | Manufacturing method for glass particulate deposit and burner | — | 2023-10-17 |
| 11680007 | Optical fiber glass preform and method for manufacturing optical fiber glass preform | — | 2023-06-20 |
| 11658251 | Solar cell, solar cell manufacturing system, and solar cell manufacturing method | Takenori Watabe, Hiroyuki Ohtsuka | 2023-05-23 |
| 11631779 | Solar cell with high photoelectric conversion efficiency and method for manufacturing solar cell with high photoelectric conversion efficiency | Hiroshi Hashigami, Takenori Watabe, Hiroyuki Ohtsuka | 2023-04-18 |
| 11616163 | Firing furnace for firing electrode of solar cell element, method for manufacturing solar cell element, and solar cell element | Takenori Watabe, Hiroyuki Otsuka | 2023-03-28 |
| 11424372 | Solar cell, solar cell manufacturing system, and solar cell manufacturing method | Takenori Watabe, Hiroyuki Ohtsuka | 2022-08-23 |
| 11384005 | Method for elongating glass preform for optical fiber | — | 2022-07-12 |
| 11201253 | High photovoltaic-conversion efficiency solar cell, method for manufacturing the same, solar cell module, and photovoltaic power generation system | Takenori Watabe, Hiroyuki Ohtsuka | 2021-12-14 |
| 11049988 | High photoelectric conversion efficiency solar cell and method for manufacturing high photoelectric conversion efficiency solar cell | Takenori Watabe, Hiroshi Hashigami, Hiroyuki Ohtsuka | 2021-06-29 |
| 10896989 | High efficiency back contact type solar cell, solar cell module, and photovoltaic power generation system | Hiroshi Hashigami, Takenori Watabe, Hiroyuki Ohtsuka | 2021-01-19 |
| 10756223 | Manufacturing method of solar cell with high photoelectric conversion efficiency and solar cell with high photoelectric conversion efficiency | Takenori Watabe, Hiroshi Hashigami, Hiroyuki Ohtsuka | 2020-08-25 |
| 10439094 | Method for manufacturing solar cell element and solar cell element | Yoko Endo, Takenori Watabe, Hiroyuki Otsuka | 2019-10-08 |
| 9887312 | Solar cell and solar-cell module | Hiroshi Hashigami, Takenori Watabe, Mitsuhito Takahashi, Shintarou Tsukigata, Takashi Murakami +2 more | 2018-02-06 |
| 9691918 | Solar battery cell and manufacturing method for the solar battery cell | Takenori Watabe, Hiroyuki Otsuka | 2017-06-27 |
| D786189 | Solar cell | Hiroyuki Otsuka, Takenori Watabe, Hiroshi Hashigami, Shun Moriyama, Chikara Mori | 2017-05-09 |
| D785559 | Solar cell | Hiroyuki Otsuka, Takenori Watabe, Hiroshi Hashigami, Shun Moriyama, Chikara Mori | 2017-05-02 |
| 9216607 | Screen printing plate for solar cell and method for printing solar cell electrode | Yoko Endo, Takenori Watabe, Hiroyuki Otsuka | 2015-12-22 |
| 8859320 | Method for producing solar cell and film-producing device | Mitsuhito Takahashi, Hiroshi Hashigami, Takashi Murakami, Shintarou Tsukigata, Takenori Watabe +1 more | 2014-10-14 |
| 8783174 | Screen printing method | Hiroyuki Otsuka, Ikuo Sakai, Kenji Abe, Naoki Ishikawa | 2014-07-22 |