Ishizumi; Keisuke
Patent Applications and Registrations
Patent applications and USPTO patent grants for Ishizumi; Keisuke.The latest application filed is for "image forming apparatus".
Company Profile
15.35.34
- Ishizumi; Keisuke - Kanagawa JP
- Ishizumi; Keisuke - Hiratsuka JP
- Ishizumi; Keisuke - Hiratsuka-shi JP
- Ishizumi; Keisuke - Mishima JP
- Ishizumi; Keisuke - Mishima-shi JP
Patent Activity
| Patent | Date |
|---|---|
| Image forming apparatus which includes a belt having an electroconductive layer Grant 11,435,680 - Ishio , et al. September 6, 2 | 2022-09-06 |
| Image-forming apparatus which controls the rotation of the intermediate transfer belt based on accumulated toner Grant 11,392,075 - Ishizumi , et al. July 19, 2 | 2022-07-19 |
| Image forming apparatus Grant 11,366,411 - Ishizumi , et al. June 21, 2 | 2022-06-21 |
| Image Forming Apparatus App 20220146967 - Ishio; Shohei ; et al. | 2022-05-12 |
| Image-forming apparatus with a durable contact member that abuts against a belt Grant 11,327,429 - Ishio , et al. May 10, 2 | 2022-05-10 |
| Image Forming Apparatus App 20220100126 - Ishizumi; Keisuke ; et al. | 2022-03-31 |
| Image Forming Apparatus App 20220066372 - Ishizumi; Keisuke ; et al. | 2022-03-03 |
| Image forming apparatus Grant 11,262,673 - Ishizumi , et al. March 1, 2 | 2022-03-01 |
| Image forming apparatus Grant 11,221,572 - Ishizumi , et al. January 11, 2 | 2022-01-11 |
| Cleaning device and image forming apparatus Grant 11,209,766 - Inaba , et al. December 28, 2 | 2021-12-28 |
| Image-forming apparatus Grant 11,209,767 - Ishio , et al. December 28, 2 | 2021-12-28 |
| Image-forming Apparatus App 20210373482 - Ishizumi; Keisuke ; et al. | 2021-12-02 |
| Image-forming Apparatus App 20210302900 - Ishio; Shohei ; et al. | 2021-09-30 |
| Image-forming Apparatus App 20210302901 - Ishio; Shohei ; et al. | 2021-09-30 |
| Electrophotographic belt and electrophotographic image forming apparatus Grant 11,009,816 - Ishizumi , et al. May 18, 2 | 2021-05-18 |
| Image Forming Apparatus App 20210141337 - Katagiri; Shinji ; et al. | 2021-05-13 |
| Cleaning Device And Image Forming Apparatus App 20210132539 - Inaba; Yuichiro ; et al. | 2021-05-06 |
| Electrophotographic Belt And Electrophotographic Image Forming Apparatus App 20200341410 - Ishizumi; Keisuke ; et al. | 2020-10-29 |
| Image Forming Apparatus App 20200319578 - Ishizumi; Keisuke ; et al. | 2020-10-08 |
| Image forming apparatus Grant 10,725,402 - Ishizumi , et al. | 2020-07-28 |
| Image forming apparatus using contact member to recover toner remaining on intermediate transfer member Grant 10,656,566 - Tanaka , et al. | 2020-05-19 |
| Image forming apparatus using intermediate transfer member having grooves and specified dynamic friction coefficient Grant 10,642,195 - Ishio , et al. | 2020-05-05 |
| Image Forming Apparatus App 20200133171 - Ishizumi; Keisuke ; et al. | 2020-04-30 |
| Image Forming Apparatus App 20190369528 - Tanaka; Takayuki ; et al. | 2019-12-05 |
| Image forming apparatus with voltage adjustment member Grant 10,459,361 - Saito , et al. Oc | 2019-10-29 |
| Image Forming Apparatus App 20190317431 - Ishio; Shohei ; et al. | 2019-10-17 |
| Image Forming Apparatus App 20190302656 - Ishizumi; Keisuke ; et al. | 2019-10-03 |
| Image forming apparatus Grant 10,281,846 - Iida , et al. | 2019-05-07 |
| Image forming apparatus with adjustment of potential for secondary transfer Grant 10,216,119 - Ishizumi , et al. Feb | 2019-02-26 |
| Image forming apparatus changing magnitude of control signal used for image formation Grant 10,197,940 - Ito , et al. Fe | 2019-02-05 |
| Image forming apparatus Grant 10,120,323 - Shimizu , et al. November 6, 2 | 2018-11-06 |
| Image Forming Apparatus App 20180246451 - Ito; Shingo ; et al. | 2018-08-30 |
| Image Forming Apparatus App 20180181020 - Ito; Shingo ; et al. | 2018-06-28 |
| Image Forming Apparatus App 20180157195 - Iida; Kenichi ; et al. | 2018-06-07 |
| Image Forming Apparatus App 20180039198 - Saito; Seiji ; et al. | 2018-02-08 |
| Image Forming Apparatus App 20180039209 - Ishizumi; Keisuke ; et al. | 2018-02-08 |
| Image Forming Apparatus App 20180032023 - Shimizu; Yusuke ; et al. | 2018-02-01 |
| Image forming apparatus Grant 9,507,295 - Ishizumi , et al. November 29, 2 | 2016-11-29 |
| Image forming apparatus Grant 9,310,706 - Ishizumi , et al. April 12, 2 | 2016-04-12 |
| Optical detection device and image forming apparatus including the same Grant 9,304,083 - Ishizumi , et al. April 5, 2 | 2016-04-05 |
| Image forming apparatus Grant 9,285,719 - Kobayashi , et al. March 15, 2 | 2016-03-15 |
| Image forming apparatus, positional deviation detection apparatus, and positional deviation detection method Grant 9,274,448 - Ishizumi , et al. March 1, 2 | 2016-03-01 |
| Image forming apparatus, density detecting apparatus, and density detecting method Grant 9,261,842 - Nakagawa , et al. February 16, 2 | 2016-02-16 |
| Image forming apparatus with control of potential at transfer portion Grant 9,195,174 - Kobayashi , et al. November 24, 2 | 2015-11-24 |
| Optical Detection Device And Image Forming Apparatus Including The Same App 20150211992 - Ishizumi; Keisuke ; et al. | 2015-07-30 |
| Image Forming Apparatus App 20150098719 - Ishizumi; Keisuke ; et al. | 2015-04-09 |
| Image Forming Apparatus, Positional Deviation Detection Apparatus, And Positional Deviation Detection Method App 20150071687 - Ishizumi; Keisuke ; et al. | 2015-03-12 |
| Image forming apparatus to transfer toner Grant 8,953,962 - Ishizumi , et al. February 10, 2 | 2015-02-10 |
| Image Forming Apparatus, Density Detecting Apparatus, And Density Detecting Method App 20150003853 - Nakagawa; Ken ; et al. | 2015-01-01 |
| Image Forming Apparatus App 20140169844 - Ishizumi; Keisuke ; et al. | 2014-06-19 |
| Image Forming Apparatus App 20140161494 - Ishizumi; Keisuke ; et al. | 2014-06-12 |
| Image Forming Apparatus App 20140153946 - Kobayashi; Shinsuke ; et al. | 2014-06-05 |
| Image Forming Apparatus App 20140147146 - Kobayashi; Shinsuke ; et al. | 2014-05-29 |
| Image forming apparatus Grant 8,693,904 - Ishizumi , et al. April 8, 2 | 2014-04-08 |
| Image forming apparatus Grant 8,666,275 - Ishizumi , et al. March 4, 2 | 2014-03-04 |
| Power supply system and image forming apparatus Grant 8,660,452 - Saito , et al. February 25, 2 | 2014-02-25 |
| Image forming apparatus having a charge member with a foamed layer Grant 8,639,154 - Ishizumi , et al. January 28, 2 | 2014-01-28 |
| Image forming apparatus Grant 8,463,154 - Akizuki , et al. June 11, 2 | 2013-06-11 |
| Image Forming Apparatus App 20120106998 - Ishizumi; Keisuke ; et al. | 2012-05-03 |
| Image Forming Apparatus App 20120027453 - Watanabe; Toshiyuki ; et al. | 2012-02-02 |
| Power Supply System And Image Forming Apparatus App 20110293314 - Saito; Seiji ; et al. | 2011-12-01 |
| Image Forming Apparatus App 20110268469 - Ishizumi; Keisuke ; et al. | 2011-11-03 |
| Image Forming Apparatus App 20110188881 - Akizuki; Tomoo ; et al. | 2011-08-04 |
| Image Forming Apparatus App 20110150524 - Ishizumi; Keisuke ; et al. | 2011-06-23 |
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