Issued Patents All Time
Showing 1–25 of 32 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12235028 | Refrigerant leakage determination system | — | 2025-02-25 |
| 12013139 | Air conditioning apparatus, management device, and connection pipe | Takeshi Hikawa, Shinichi Kasahara | 2024-06-18 |
| 11971203 | Apparatus, method, and program for estimating amount of refrigerant | Takeshi Hikawa, Shinichi Kasahara, Shohei Yamada, Hiroyuki Kagitani, Hidetaka KISHIMOTO | 2024-04-30 |
| 11885520 | Machine learning apparatus for determining operation condition of precooling operation or preheating operation of air conditioner | Tadafumi Nishimura | 2024-01-30 |
| 11874037 | Additional-filling-amount management system | Shinichi Kasahara | 2024-01-16 |
| 11525595 | System for determining operation condition of precooling operation/preheating operation of air conditioner | Tadafumi Nishimura | 2022-12-13 |
| 11402137 | Refrigerant amount management system | — | 2022-08-02 |
| 11346570 | Refrigerant leakage determination system and refrigeration cycle apparatus | Takeshi Hikawa | 2022-05-31 |
| 9657979 | Demand-response system | Takahiro Yamaguchi, Hiroei Mikami | 2017-05-23 |
| 8844300 | Refrigerant pipe washing method, air conditioner updating method, and air conditioner | Kazuhide Mizutani, Hiromune Matsuoka, Atsushi Yoshimi | 2014-09-30 |
| 8555703 | Leakage diagnosis apparatus, leakage diagnosis method, and refrigeration apparatus | Tsuyoshi Yonemori, Yoshinari Sasaki, Takahiro Yamaguchi | 2013-10-15 |
| 8350582 | Fluid sensor, refrigerant leakage detection device, refrigeration system, and refrigerant leakage detection method | Yoshinari Sasaki, Takahiro Yamaguchi, Tsuyoshi Yonemori, Youyou Xu | 2013-01-08 |
| 8215121 | Refrigerant quantity determining system of air conditioner | Takahiro Yamaguchi, Tadafumi Nishimura, Shinichi Kasahara | 2012-07-10 |
| 8069682 | Air conditioner that corrects refrigerant quantity determination based on refrigerant temperature | Tadafumi Nishimura | 2011-12-06 |
| 8033123 | Air conditioner | Shinichi Kasahara, Tadafumi Nishimura | 2011-10-11 |
| 7954333 | Air conditioner | — | 2011-06-07 |
| 7946121 | Air conditioner | Takahiro Yamaguchi, Tadafumi Nishimura, Shinichi Kasahara | 2011-05-24 |
| 7685835 | Air conditioning system | — | 2010-03-30 |
| 7624583 | Freezer device | Atsushi Yoshimi | 2009-12-01 |
| 7497091 | Refrigeration device | Atsushi Yoshimi | 2009-03-03 |
| 7357002 | Method for installing refrigeration device, and refrigeration device | Nobuki Matsui, Hiromume Matsuoka, Kazuhide Mizutani | 2008-04-15 |
| 7334426 | Refrigerating apparatus | Atsushi Yoshimi, Kazuhide Mizutani, Hiromune Matsuoka | 2008-02-26 |
| 7104086 | Refrigeration apparatus | Kazuhide Mizutani, Hiromune Matsuoka, Atsushi Yoshimi | 2006-09-12 |
| 6792771 | Air-conditioning apparatus | Chun-cheng Piao, Ryuichi Sakamoto, Kazuo Yonemoto, Shotaro Mishina, Akira Kamino | 2004-09-21 |
| 6786059 | Refrigeration system | Chun-cheng Piao, Ryuichi Sakamoto, Yuji Watanabe, Kazuo Yonemoto | 2004-09-07 |