Issued Patents All Time
Showing 1–25 of 40 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12275000 | Method of producing catalyst or adsorbent carrier, and catalyst or adsorbent carrier | Takafumi Watanabe, Masao Yamaguchi, Hidemitsu Watanabe, Hiroyuki Watanabe | 2025-04-15 |
| 11865512 | Method of producing catalyst or adsorbent carrier, and catalyst or adsorbent carrier | Takafumi Watanabe, Masao Yamaguchi, Hidemitsu Watanabe, Hiroyuki Watanabe | 2024-01-09 |
| 11690930 | Photocatalytic device | Hidemitsu Watanabe, Hiroyuki Watanabe, Takafumi Watanabe | 2023-07-04 |
| 11504445 | Photocatalytic air cleaning structure for air cleaner, air cleaner having the air cleaning structure, and photocatalytic filter for use in the air cleaning structure | Hidemitsu Watanabe, Hiroyuki Watanabe, Takafumi Watanabe | 2022-11-22 |
| 11446406 | Photocatalytic device and fluid cleaning apparatus having the device | Hidemitsu Watanabe, Hiroyuki Watanabe, Takafumi Watanabe, Masao Yamaguchi | 2022-09-20 |
| 9707310 | Air cleaning device, air cleaning method using the air cleaning device, and air cleaning system | Hidemitsu Watanabe, Hiroyuki Watanabe, Takafumi Watanabe | 2017-07-18 |
| 8847509 | Light-emitting diode driving apparatus including charging/discharging capacitor | Harumi Sakuragi, Wataru Ogura | 2014-09-30 |
| 8680782 | Light-emitting diode driving apparatus | Harumi Sakuragi, Wataru Ogura, Minoru Kitahara | 2014-03-25 |
| 8653752 | Light-emitting diode driving apparatus for suppressing harmonic components | Harumi Sakuragi, Wataru Ogura, Minoru Kitahara | 2014-02-18 |
| 8471495 | Light-emitting diode driving apparatus and light-emitting diode lighting controlling method | Shuji Muguruma, Wataru Ogura | 2013-06-25 |
| 8053896 | IC chip coating material and vacuum fluorescent display device using same | Yusuke Yasuoka, Masahiro Kato, Kouji Fujiwara | 2011-11-08 |
| 5932179 | Waste gas treatment apparatus | Hiromi Tanaka | 1999-08-03 |
| 5911614 | Field emission device and method for manufacturing same | Norio Nishimura, Toshio Kaneshige, Masateru Taniguchi, Takahiro Niiyama, Minoru Katayama | 1999-06-15 |
| 5835991 | Getter, getter device and fluorescent display device | Takahiro Niiyama, Shigeo Itoh | 1998-11-10 |
| 5834885 | Field emission cathode and method for manufacturing same | Shigeo Itoh, Kazuyoshi Ohtsu, Masateru Taniguchi | 1998-11-10 |
| 5820434 | Vacuum airtight envelope and method for manufacturing same | Shigeo Itoh, Tatsuo Yamaura, Yoshio Makita, Akira Kadowaki | 1998-10-13 |
| 5793154 | Field emission element | Shigeo Itoh, Makoto Miyamori, Norio Nishimura, Junji Itoh, Seigo Kanemaru | 1998-08-11 |
| 5789856 | Fluorescent display device with blue filter | Shigeo Itoh, Hitoshi Toki, Tatsuo Yamaura, Yukio Ogawa | 1998-08-04 |
| 5786659 | Field emission type electron source | Toshinori Takagi, Masateru Taniguchi, Shigeo Itoh, Takahiro Niiyama | 1998-07-28 |
| 5756058 | Process for purifying sulfur oxides-containing gas | Hiromi Tanaka, Kouji Kobayashi | 1998-05-26 |
| 5717286 | Electron excited luminous element with an anode substrate having a glass exposed subface provided with a hydrophobic property | Shigeo Itoh, Tatsuo Yamaura, Takeshi Tonegawa, Takahiro Niiyama, Yuji Nomura | 1998-02-10 |
| 5656330 | Resistive element having a resistivity which is thermally stable against heat treatment, and method and apparatus for producing same | Takahiro Niiyama, Shigeo Itoh | 1997-08-12 |
| 5656889 | Getter, getter device and fluorescent display device | Takahiro Niiyama, Shigeo Itoh | 1997-08-12 |
| 5650689 | Vacuum airtight device having NbN electrode structure incorporated therein | Shigeo Itoh, Kazuhiko Tsuburaya, Yoshihiko Hirata, Susumu Takada, Hiroshi Nakagawa | 1997-07-22 |
| 5637023 | Field emission element and process for manufacturing same | Shigeo Itoh, Hisashi Nakata, Norio Nishimura, Junji Itoh, Seigo Kanemaru | 1997-06-10 |