HO

Hiroko Ohkura

Ricoh Company: 26 patents #784 of 9,818Top 8%
Overall (All Time): #151,956 of 4,157,543Top 4%
26
Patents All Time

Issued Patents All Time

Showing 1–25 of 26 patents

Patent #TitleCo-InventorsDate
12030090 Wiping member, wiping method, and image forming apparatus Takumi Atake, Akira Izutani, Yohta Sakon, Yuusuke Fujita 2024-07-09
11981141 Wiping method and image forming apparatus Ichiroh Fujii, Takumi Atake, Yohta Sakon, Akira Izutani 2024-05-14
11780230 Wiper, wiping device, liquid discharge apparatus, and wiping method Takumi Atake, Yohta Sakon 2023-10-10
11179940 Liquid discharging device and wiping method Akiko Bannai, Takumi Atake, Yohta Sakon 2021-11-23
11130343 Wiping device, liquid discharging device, and wiping method Akiko Bannai, Takumi Atake, Yohta Sakon 2021-09-28
10889119 Wiping device, wiping member, liquid discharging device, and wiping method Yohta Sakon, Takumi Atake, Akira Izutani 2021-01-12
10759173 Wiping member, wiping method, and wiping device Yohta Sakon, Akira Izutani, Takumi Atake 2020-09-01
9453659 Reaction material formed body and heat storage and release unit Yasutomo Aman, Yohei Shiren, Masahiro Masuzawa, Yoshifumi Ohba 2016-09-27
9243179 Reaction material and chemical heat pump Yohei Shiren, Masahiro Masuzawa, Yasutomo Aman, Yoshifumi Ohba 2016-01-26
8124315 Optical recording medium Hiroyoshi Sekiguchi, Kazunori Ito, Hiroshi Deguchi, Masaki Kato, Mikiko Takada 2012-02-28
8075974 Optical recording medium Hiroshi Deguchi, Eiko Hibino, Kazunori Ito, Hajime Yuzurihara, Hiroyuki Iwasa 2011-12-13
8017209 Optical recording medium Eiko Hibino, Hiroshi Deguchi, Kazunori Ito 2011-09-13
7800993 Optical recording medium, recording method thereof and evaluation method of optical recording medium Masaki Kato, Kazunori Ito, Hiroshi Deguchi, Mikiko Takada, Hiroyoshi Sekiguchi 2010-09-21
7715293 Optical recording medium and method of recording to the same Masaki Kato, Kazunori Ito, Hiroshi Deguchi, Mikiko Abe, Hiroyoshi Sekiguchi 2010-05-11
7626915 Phase-change optical recording medium and recording and reproducing method thereof Hiroshi Deguchi, Kazunori Ito, Eiko Hibino, Masaki Kato, Mikiko Abe +1 more 2009-12-01
7507523 Optical information recording medium, method of manufacturing the optical information recording medium, and method of and apparatus for recording/reproducing optical information Katsuyuki Yamada, Shinya Narumi, Makoto Harigaya, Katsuhiko Tani, Noriyuki Iwata +7 more 2009-03-24
7485357 Optical recording medium Mikiko Takada, Kazunori Ito, Hiroshi Deguchi, Masaki Kato, Hiroyoshi Sekiguchi 2009-02-03
7438965 Phase-change information recording medium, manufacturing method for the same, sputtering target, method for using the phase-change information recording medium and optical recording apparatus Kazunori Ito, Hiroshi Deguchi, Masaki Kato, Mikiko Abe, Hiroyoshi Sekiguchi +2 more 2008-10-21
7384678 Optical recording medium and process for producing the same, sputtering target, using process of optical recording medium, and optical recording apparatus Hiroshi Miura, Kazunori Ito, Makoto Harigaya, Eiko Hibino, Masaru Shinkai 2008-06-10
7364781 Optical recording medium, recording material, method of producing optical recording medium and optical recording, reading and rewriting method Kazunori Ito, Eiko Hibino, Makoto Harigaya, Takashi Shibaguchi, Hajime Yuzurihara +3 more 2008-04-29
7242657 Phase change type optical recording medium and recording method therefor Kazunori Ito, Makoto Harigaya, Masaru Shinkai 2007-07-10
7068591 Information recording method and optical recording medium therefor Yoshiyuki Kageyama, Makoto Harigaya, Hajime Yuzurihara, Eiko Hibino, Hiroshi Miura +1 more 2006-06-27
6963527 Information recording method and optical recording medium therefor Yoshiyuki Kageyama, Makoto Harigaya, Hajime Yuzurihara, Eiko Hibino, Hiroshi Miura +1 more 2005-11-08
6884487 Optical recording medium, recording material, method of producing optical recording medium, and optical recording, reading and rewriting method Kazunori Ito, Eiko Hibino, Makoto Harigaya, Takashi Shibaguchi, Hajime Yuzurihara +3 more 2005-04-26
6846611 Phase-change optical recording medium Hajime Yuzurihara, Kazunori Ito, Nobuaki Onagi, Masaru Shinkai, Eiko Hibino +1 more 2005-01-25