KY

Katsuyuki Yamada

Ricoh Company: 60 patents #134 of 9,818Top 2%
Fujitsu Limited: 3 patents #8,614 of 24,456Top 40%
FL Fujitsu Vlsi Limited: 1 patents #91 of 256Top 40%
Overall (All Time): #36,052 of 4,157,543Top 1%
63
Patents All Time

Issued Patents All Time

Showing 26–50 of 63 patents

Patent #TitleCo-InventorsDate
7072258 Optical information recording medium, with at least one inconsecutive part, and recording apparatus Masaki Katoh, Yuki Nakamura 2006-07-04
7068581 Optical recording apparatus for recording addresses and having a non-consecutive part in which addresses may or may not be set Masaki Katoh, Yuki Nakamura 2006-06-27
7063875 Optical recording medium Hiroshi Deguchi, Hajime Yuzurihara, Eiko Hibino, Hiroshi Miura, Mikiko Abe +3 more 2006-06-20
7042831 Optical information recording medium Kazunori Ito, Hajime Yuzurihara, Nobuaki Onagi, Shinya Narumi 2006-05-09
7027382 Optical recording medium having relation between reflection layer and pit lengths Shinya Narumi 2006-04-11
6996041 Optical recording medium recording longest mark at speed which half of lowest guaranteed speed for the recording medium Masaki Kato, Yuki Nakamura 2006-02-07
6990053 Method and apparatus for initializing optical recording media Kyohji Hattori, Kenichi Aihara, Fumiya Ohmi, Eiji Noda, Yujiro Kaneko +2 more 2006-01-24
6914866 Optical information recording medium and information recording method and apparatus using the recording medium Shinya Narumi, Kazunori Ito, Hajime Yuzurihara, Nobuaki Onagi 2005-07-05
6886177 Phase-change type optical information recording medium Masaki Katoh, Yuki Nakamura 2005-04-26
6827999 Optical information recording medium Kazunori Ito, Hajime Yuzurihara, Nobuaki Onagi, Shinya Narumi 2004-12-07
6775213 Method and apparatus for initializing optical recording media Kyohji Hattori, Kenichi Aihara, Fumiya Ohmi, Eiji Noda, Yujiro Kaneko +2 more 2004-08-10
6760291 Method and apparatus for initializing optical recording media Kyohji Hattori, Kenichi Aihara, Fumiya Ohmi, Eiji Noda, Yujiro Kaneko +2 more 2004-07-06
6757232 Method of recording and reproducing information and apparatus for recording and reproducing information using the method Yuki Nakamura, Masaki Kato 2004-06-29
6652806 Method of producing a sputtering target Yukio Ide, Hiroko Iwasaki, Yoshiyuki Kageyama, Yujiro Kaneko, Michiaki Shinotsuka +2 more 2003-11-25
6580672 Method and apparatus for initializing optical recording media Kyohji Hattori, Kenichi Aihara, Fumiya Ohmi, Eiji Noda, Yujiro Kaneko +2 more 2003-06-17
6503592 Sputtering target, method of producing the target, optical recording medium fabricated by using the sputtering target, and method of fabricating the optical recording medium Hiroko Iwasaki, Yukio Ide, Makoto Harigaya, Yoshiyuki Kageyama, Hiroshi Deguchi +2 more 2003-01-07
6445669 Initialization of phase-change optical recording medium Kyohji Hattori, Fumiya Ohmi, Kenichi Aihara, Yuki Nakamura, Eiji Noda +3 more 2002-09-03
6388978 Optical recording method for a rewritable phase-change optical recording medium Ippei Ogawa, Eiji Noda, Yuki Nakamura, Kenichi Aihara, Hiroko Iwasaki 2002-05-14
6373802 Method and apparatus for initializing optical recording media Kyohji Hattori, Kenichi Aihara, Fumiya Ohmi, Eiji Noda, Yujiro Kaneko +2 more 2002-04-16
6319368 Sputtering target, method of producing the target, optical recording medium fabricated by using the sputtering target, and method of forming recording layer for the optical recording medium Yukio Ide, Hiroko Iwasaki, Yoshiyuki Kageyama, Yujiro Kaneko, Michiaki Shinotsuka +2 more 2001-11-20
6280684 Sputtering target, method of producing the target, optical recording medium fabricated by using the sputtering target, and method of fabricating the optical recording medium Hiroko Iwasaki, Yukio Ide, Makoto Harigaya, Yoshiyuki Kageyama, Hiroshi Deguchi +2 more 2001-08-28
6280810 Phase-change information recording medium and optical recording method to make higher rotation rates feasible Yuki Nakamura, Eiji Noda, Ippei Ogawa 2001-08-28
6127016 Sputtering target, method of producing the target, optical recording medium fabricated by using the sputtering target, and method of fabricating the optical recording medium Hiroko Iwasaki, Yukio Ide, Makoto Harigaya, Yoshiyuki Kageyama, Hiroshi Deguchi +2 more 2000-10-03
5974025 Optical recording medium and recording and reproducing method using the same Yuki Nakamura, Eiji Noda, Kyohji Hattori, Kenichi Aihara, Fumiya Ohmi +1 more 1999-10-26
5882493 Heat treated and sintered sputtering target Hiroko Iwasaki, Yoshiyuki Kageyama, Makoto Harigaya, Masaetsu Takahashi, Hiroshi Deguchi +2 more 1999-03-16