| 12313296 |
Heat exchanger and water heater |
Takeshi Ohigashi, Shigeo Sugie, Kengo Horiuchi, Naoya Shiotsu |
2025-05-27 |
| 12305884 |
Heat exchanger and water heater equipped with the same |
— |
2025-05-20 |
| 12253311 |
Heat exchanger and water heating device including the same |
Naoya Shiotsu |
2025-03-18 |
| 11774138 |
Hot water device |
Masaki Kondo |
2023-10-03 |
| 11421946 |
Heat exchanger and water heating apparatus including the same |
Masahiro Iguchi |
2022-08-23 |
| 11293702 |
Heat exchanger and hot water apparatus |
Takeshi Ohigashi |
2022-04-05 |
| D917031 |
Heat exchanger for water heater |
Takeshi Oohigashi, Masaki Kondo |
2021-04-20 |
| D916257 |
Heat exchanger for water heater |
Takeshi Oohigashi, Masaki Kondo |
2021-04-13 |
| D916258 |
Heat exchanger for water heater |
Takeshi Oohigashi, Masaki Kondo |
2021-04-13 |
| 10948236 |
Heat exchanger and water heater including same |
Takeshi Ohigashi, Nobuhiro Takeda |
2021-03-16 |
| 10890356 |
Heat exchange device and heat source machine |
Naoya Shiotsu, Takeshi Ohigashi, Masaki Kondo |
2021-01-12 |
| D904588 |
Heat exchanger for water heater |
Takeshi Oohigashi, Masaki Kondo |
2020-12-08 |
| D904589 |
Heat exchanger for water heater |
Takeshi Oohigashi, Masaki Kondo |
2020-12-08 |
| D904587 |
Heat exchanger for water heater |
Takeshi Oohigashi, Masaki Kondo |
2020-12-08 |
| 10072842 |
Water heater |
Shuji Kameyama, Yasutaka Kuriyama, Keigo Fukunishi, Tatsuya KARAKI |
2018-09-11 |
| 10012414 |
Water heater |
— |
2018-07-03 |
| 9945581 |
Water heater |
Yu FUJIMOTO |
2018-04-17 |
| 9746204 |
Water heater |
Hironao Matsunaga, Shuji Kameyama, Keigo Fukunishi |
2017-08-29 |
| 9513030 |
Water heater |
Tatsuya KARAKI, Yasutaka Kuriyama, Shuji Kameyama, Keigo Fukunishi |
2016-12-06 |
| 9228742 |
Rich-lean combustion burner and combustion apparatus |
Takashi Akiyama, Takeshi Wakada, Toshio Watanabe, Itsuo Nagai, Yasutaka Kuriyama +2 more |
2016-01-05 |
| 9115888 |
Rich-lean combustion burner |
Takashi Akiyama, Takeshi Wakada, Itsuo Nagai, Ryosuke Umakoshi |
2015-08-25 |
| 9115889 |
Rich-lean combustion burner and combustion apparatus |
Keigo Fukunishi, Takeshi Wakada, Toshio Watanabe, Takashi Akiyama, Yasutaka Kuriyama +2 more |
2015-08-25 |
| 9115891 |
Rich-lean combustion burner |
Takashi Akiyama, Takeshi Wakada, Yasutaka Kuriyama, Ryosuke Umakoshi, Itsuo Nagai |
2015-08-25 |