KH

Koichi Hirayama

KT Kabushiki Kaisha Toshiba: 59 patents #253 of 21,451Top 2%
Sumitomo Electric Industries: 14 patents #1,767 of 21,551Top 9%
Pioneer Electronic: 3 patents #611 of 1,840Top 35%
TC Toyo Kohan Co.: 2 patents #100 of 295Top 35%
HI Hitachi: 2 patents #13,388 of 28,497Top 50%
MC Matsushit Electric Industrial Co.: 1 patents #13 of 293Top 5%
JP Japan Polypropylene: 1 patents #56 of 95Top 60%
Overall (All Time): #33,987 of 4,157,543Top 1%
65
Patents All Time

Issued Patents All Time

Showing 1–25 of 65 patents

Patent #TitleCo-InventorsDate
8497068 Method for detecting a position of probe on microarray Hirofumi Yamano, Michifumi Tanga 2013-07-30
8481461 Detection method for microarray Hirofumi Yamano, Akane Ito 2013-07-09
7433474 Method and apparatus of enciphering and deciphering data using keys enciphered and deciphered with other keys Takehisa Kato, Naoki Endoh, Hiroaki Unno, Tadashi Kojima 2008-10-07
7406635 Information recording medium on which sector data generated from ECC block is recorded, information recording apparatus for recording sector data, and information reproduction apparatus for reproducing sector data Chosaku Noda, Hideo Ando 2008-07-29
7404111 Information recording medium on which sector data generated from ECC block is recorded, information recording apparatus for recording sector data, and information reproduction apparatus for reproducing sector data Chosaku Noda, Hideo Ando 2008-07-22
7401268 Information recording medium on which sector data generated from ECC block is recorded, information recording apparatus for recording sector data, and information reproduction apparatus for reproducing sector data Chosaku Noda, Hideo Ando 2008-07-15
7394740 Reproduction signal evaluation method Chosaku Noda, Yutaka Kashihara, Yutaka Okamoto, Hideo Ando 2008-07-01
7390575 Propylene-ethylene random block copolymer and biaxially oriented multi-layer film using the same as a surface layer Takao Tayano, Kuninori Takahashi, Iku Kouzai, Shinichi Kitade, Shigeo Mizukami 2008-06-24
RE40312 Digital data transmitting method Tadashi Kojima, Hisashi Yamada, Yoshiaki Moriyama, Fumihiko Yokogawa, Takao Arai +4 more 2008-05-13
7327657 Reproduction signal evaluation method Chosaku Noda, Yutaka Kashihara, Yutaka Okamoto, Hideo Ando 2008-02-05
7233667 Record medium, record medium manufacturing device, computer readable record medium on which program is recorded, and data presentation device Taku Katoh, Naoki Endoh, Hisashi Yamada 2007-06-19
7134055 Information recording medium on which sector data generated from ECC block is recorded, information recording apparatus for recording sector data, and information reproduction apparatus for reproducing sector data Chosaku Noda, Hideo Ando 2006-11-07
7106677 Reproduction signal evaluation method Chosaku Noda, Yutaka Kashihara, Yutaka Okamoto, Hideo Ando 2006-09-12
7003711 Information recording medium on which sector data generated from ECC block is recorded, information recording apparatus for recording sector data, and information reproduction apparatus for reproducing sector data Chosaku Noda, Hideo Ando 2006-02-21
6847600 Method for estimating the quality of an information recording medium utilizing equalization signals Yutaka Kashihara, Yutaka Okamoto, Chosaku Noda, Hideo Ando 2005-01-25
6785210 Reproduction signal evaluation method Chosaku Noda, Yutaka Kashihara, Yutaka Okamoto, Hideo Ando 2004-08-31
6704259 Information recording and reproducing apparatus and information recording and reproducing method, information reproducing apparatus and information reproducing method, and information recording medium Yutaka Kashihara, Yutaka Okamoto, Chosaku Noda, Hideo Ando 2004-03-09
6671243 Information storage medium, information recording method, and information reproduction method Hideo Ando, Yutaka Kashihara, Chosaku Noda, Yutaka Okamoto 2003-12-30
6397366 Data transmission system, data recording and reproducing apparatus and recording medium each having data structure of error correcting code Shin-ichi Tanaka, Masatoshi Shimbo, Shinya Yamada, Tadashi Kojima 2002-05-28
6347145 Method and apparatus of enciphering and deciphering data using keys enciphered and deciphered with other keys Takehisa Kato, Naoki Endoh, Hiroaki Unno, Tadashi Kojima 2002-02-12
6182263 Apparatus for generating, recording and transmitting an error product code block having an improved check code arrangement Tadashi Kojima, Yoshihisa Fukushima, Takashi Yumiba 2001-01-30
6160890 Secret key transfer method which is highly secure and can restrict the damage caused when the secret key is leaked or decoded Makoto Tatebayashi, Motoji Ohmori, Takehisa Kato, Naoki Endoh 2000-12-12
6151394 Encrypted communication system that limits the damage caused when a secret key has been leaked Makoto Tatebayashi, Yoshihisa Fukushima, Takehisa Kato, Naoki Endoh 2000-11-21
6128434 Multilingual recording medium and reproduction apparatus Masatoshi Nakai, Yuichi Miyano, Kenjiro Endoh 2000-10-03
6049611 One-way data conversion apparatus and device authentication system Makoto Tatebayashi, Natsume Matsuzaki 2000-04-11