Yohei Ishikawa
Inventor
Stats
- 57 US patents issued
- 68 US Applications filed
- most recent filing
This is official USPTO record data
Details
- 57 US Patents Issued
- 68 US Applications Filed
- 898 Total Citation Count
- Oct 22, 2021 Most Recent Filing
- Mar 22, 1996 Earliest Filing
Work History
| Patent Owner | Applications Filed | Year |
|---|---|---|
| NATIONAL UNIVERSITY CORPORATION NARA INSTITUTE OF SCIENCE AND TECHNOLOGY | 1
| 2010
|
| DOWA ELECTRONICS MATERIALS CO., LTD. | 2
1 | 2014
2016 |
| MURATA MANUFACTURING CO., LTD. | 4
14 14 7 3 5 8 13 1 3 | 1996
1997 1998 1999 2000 2001 2002 2003 2004 2005 |
| YAMAHA CORPORATION | 1
| 2010
|
| DOWA IP CREATION CO., LTD. | 2
1 | 2014
2016 |
Inventor Addresses
| Address | Duration |
|---|---|
| JP | Jun 15, 99 - Jun 15, 99 |
| Chiyoda-ku, Tokyo, JP | Mar 14, 19 - Sep 29, 22 |
| KYOTO SHI, JP | Aug 16, 01 - Aug 16, 01 |
| Kyoto, JP | Jun 09, 98 - Mar 01, 05 |
| Kyoto-fu, JP | Jul 11, 02 - Apr 06, 04 |
| Kyoto-shi, JP | Apr 25, 02 - Aug 06, 15 |
| Minato-ku, Tokyo, JP | Dec 21, 23 - Dec 21, 23 |
| Nagaokakyo-shi, JP | Sep 27, 01 - Sep 27, 01 |
| Okayama, JP | Aug 22, 17 - Jan 17, 23 |
| Okayama-shi, JP | Sep 15, 16 - May 06, 21 |
| Tokyo, JP | Sep 01, 20 - Sep 01, 20 |
| Tokyo-to, JP | Nov 25, 10 - Nov 25, 10 |
| Yokohama, JP | Jan 07, 03 - Apr 14, 09 |
| Yokohama-shi, JP | May 08, 03 - Aug 02, 07 |
Technology Profile
| Technology | Matters | |
|---|---|---|
| B01J: | CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS, COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS | 3 |
| C01G: | COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F | 2 |
| C02F: | TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE | 1 |
Patents / Publication
| Patents / Publication # | Year of Publication / Issued | Title | Citations |
|---|---|---|---|
| 2023/0405,553 | 2023 | ADSORBENT PARTICLES, METHOD FOR PRODUCING ADSORBENT PARTICLES, BASE MATERIAL PARTICLES, FILLING COLUMN, AND METHOD FOR RECOVERING RARE EARTH ELEMENT | 0 |
| 11556070 | 2023 | Carrier core material and electrophotographic development carrier using same and electrophotographic developer | 0 |
| 2022/0305,457 | 2022 | ADSORBENT PARTICLES, BASE PARTICLE, PACKED COLUMN, AND METHOD FOR RECOVERING RARE-EARTH ELEMENT | 0 |
| 2022/0219,139 | 2022 | ADSORBENT PARTICLES, METHOD FOR PRODUCING ADSORBENT PARTICLES, BASE MATERIAL PARTICLES, FILLING COLUMN AND METHOD FOR RECOVERING RARE EARTH ELEMENT | 0 |
| 2021/0132,520 | 2021 | CARRIER CORE MATERIAL AND ELECTROPHOTOGRAPHIC DEVELOPMENT CARRIER USING SAME AND ELECTROPHOTOGRAPHIC DEVELOPER | 0 |
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