Keiji Fujikawa
Inventor
Stats
- 17 US patents issued
- 22 US Applications filed
- most recent filing
This is official USPTO record data
Details
- 17 US Patents Issued
- 22 US Applications Filed
- 312 Total Citation Count
- Sep 21, 2021 Most Recent Filing
- Mar 30, 1987 Earliest Filing
Work History
| Patent Owner | Applications Filed | Year |
|---|---|---|
| HITACHI, LTD. | 2
1 1 1 2 | 1994
1995 1998 2000 2001 |
| Hitachi Computer Engineering Co., Ltd. | 1
1 | 1994
1995 |
| KYUSHU ELECTRIC POWER CO., INC. | 2
2 | 2011
2016 |
| Kabushiki Kaisha Meiji Gomu Kasei | 2
| 2011
|
| YAMAHA HATSUDOKI KABUSHIKI KAISHA | 1
| 1987
|
| ASAHI GLASS COMPANY, LIMITED | 2
| 2004
|
| MITSUBISHI HEAVY INDUSTRIES, LTD. | 1
2 9 4 1 2 | 1999
2003 2009 2011 2015 2016 |
Inventor Addresses
| Address | Duration |
|---|---|
| Aichi, JP | Feb 10, 05 - Jun 06, 06 |
| Hadano, JP | May 07, 96 - Apr 22, 03 |
| Hadano-shi, JP | Dec 13, 01 - Dec 13, 01 |
| Hiroshima, JP | Aug 20, 02 - Nov 17, 15 |
| Hiroshima-shi, JP | May 26, 05 - May 26, 05 |
| Iwata, JP | Aug 30, 88 - Aug 30, 88 |
| Tokyo, JP | Jan 20, 11 - Dec 21, 23 |
Technology Profile
| Technology | Matters | |
|---|---|---|
| B01D: | SEPARATION | 9 |
| B01F: | MIXING, e.g. DISSOLVING, EMULSIFYING, DISPERSING | 1 |
| B01J: | CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS, COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS | 5 |
Patents / Publication
| Patents / Publication # | Year of Publication / Issued | Title | Citations |
|---|---|---|---|
| 2023/0406,746 | 2023 | WASTE TREATMENT SYSTEM AND WASTE TREATMENT METHOD | 0 |
| 2023/0356,275 | 2023 | WASTE TREATMENT SYSTEM AND WASTE TREATMENT METHOD | 0 |
| 2023/0257,783 | 2023 | WASTE TREATMENT SYSTEM AND WASTE TREATMENT METHOD | 0 |
| 9662607 | 2017 | recovery method | 0 |
| 2016/0271,557 | 2016 | CO2 RECOVERY UNIT AND CO2 RECOVERY METHOD | 0 |
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