HT

Hidekazu Takeda

HI Hitachi: 26 patents #1,179 of 28,497Top 5%
HM Hitachi Maxell: 10 patents #74 of 1,211Top 7%
HI Hitachi Video Engineering, Incorporated: 3 patents #19 of 181Top 15%
EX Exabyte: 1 patents #43 of 104Top 45%
FL Fujitsu Optical Components Limited: 1 patents #74 of 126Top 60%
HC Hitachi Engineering Co.: 1 patents #187 of 572Top 35%
Overall (All Time): #139,220 of 4,157,543Top 4%
28
Patents All Time

Issued Patents All Time

Showing 25 most recent of 28 patents

Patent #TitleCo-InventorsDate
9455789 Optical reception apparatus, and control apparatus and control method of optical reception apparatus 2016-09-27
8073312 Recorder equipped with dubbing function Takashi Yoshimaru, Maki Furui, Hiroaki Ono, Katsuyuki Watanabe, Kyuichirou Nagai 2011-12-06
6757123 Method and apparatus for cleaning a magneto-resistive head Kenmei Masuda, Shigeru Yamazaki, Akihisa Obata, Toshio Tsuchiya, Kenkichi Inada +1 more 2004-06-29
6654194 High reliability magneto-resistive head cleaning system Kenmei Masuda, Shigeru Yamazaki, Akihisa Obata, Toshio Tsuchiya, Kenkichi Inada +1 more 2003-11-25
6078464 Drum base on which a drum of a magnetic tape recorder is mounted Shinya Fujimori, Kenmei Masuda, Atsushi Inoue, Fukuyasu Abe, Hisashi Ichikawa +3 more 2000-06-20
6061213 Magnetic tape cartridge having triple lid assembly Hikaru Mizutani, Mikihisa Inoue, Kenmei Masuda 2000-05-09
5978185 Rotary head and recording/reading apparatus provided with rotary head Fukuyasu Abe, Kenmei Masuda, Shinya Fujimori, Atsushi Inoue, Yoshiharu Yamashita +4 more 1999-11-02
5734537 Tape guide structure of rotary head drum in recording/reproduction apparatus and method of machining the same Seiji Ono, Kenmei Masuda, Atsushi Inoue, Nobuo Masuoka, Noboru Katohno +3 more 1998-03-31
5687047 Magnetic tape cartridge having triple lid assembly Hikaru Mizutani, Mikihisa Inoue, Kenmei Masuda 1997-11-11
5602695 Cassette loading mechanism for recording and playback apparatus Tatsumi Nishijima, Kenmei Masuda, Hikaru Mizutani, Yoshimi Maehara 1997-02-11
5570831 Pneumatic static guide for a tape Kenmei Masuda, Nobuyuki Kaku, Tomoki Shoji, Toshihiro Koyama, Kazuo Sakai +1 more 1996-11-05
5556051 Tape cartridge having a front lid with a covering wall Hikaru Mizutani, Yoshimi Maehara, Tatsumi Nishijima, Kenji Ogiro, Nobuyuki Kaku 1996-09-17
5537279 Tape cassette and magnetic recording/reproducing device Nobuyuki Kaku, Tomochika Yamashita, Yoshimi Maehara, Mikihisa Inoue, Hikaru Mizutani 1996-07-16
5503348 Opening and closing of a front lid of a tape cartridge Hikaru Mizutani, Yoshimi Maehara, Kenji Ogiro, Nobuyuki Kaku 1996-04-02
5497279 Tape cartridge and recording reproduction apparatus for the tape cartridge Tatsumi Nishijima, Kenmei Masuda, Hikaru Mizutani, Yoshimi Maehara, Kenji Ogiro 1996-03-05
5479312 Tape cartridge system implementing variable sized tape cartridges designed for use on the same recording/reproducing apparatus Kenmei Masuda, Tatsumi Nishijima, Hikaru Mizutani, Yoshimi Maehara 1995-12-26
5469319 Magnetic tape cassette having tape edge regulating members Nobuyuki Kaku, Kenji Ogiro 1995-11-21
5454527 Tape cartridge Hikaru Mizutani, Yoshimi Maehara, Nobuyuki Kaku, Kenji Ogiro 1995-10-03
5315460 Magnetic recording and reproducing apparatus including S fixed chassis for supporting a head drum and a movable chassis for mounting a tape cassette Masao Iwakura, Nobuo Masuoka, Tetsuo Itou, Ikuo Nishida, Yoshiharu Yamashita +2 more 1994-05-24
5295637 Cassette lid-locking element with shutter portion for closing a light passage window Nobuyuki Kaku, Yoshimi Maehara, Mikihisa Inoue 1994-03-22
5278707 Tape loading mechanism for magnetic recording and/or reproducing apparatus Naoko Tsuchiya, Masao Iwakura, Kyuichirou Nagai, Ikuo Nishida, Yoshiharu Yamashita +3 more 1994-01-11
5124854 Cassette loading apparatus having an inner cassette holder supported on an outer cassette holder Koji Iyota, Ikuo Nishida, Yosiharu Yamasita, Motonori Ohmori, Masao Iwakura +1 more 1992-06-23
5119257 Rotary head device having a motor within the rotary drum, and magnetic recording and reproducing apparatus using the same Tetsuo Itou, Masao Iwakura, Nobuo Masuoka, Toshio Osada 1992-06-02
RE33784 Magnetic recording/reproducing apparatus for recording onto or reproducing from a magnetic tape Atsuo Osawa, Kenji Ogiro, Shouzou Yokoo 1991-12-31
5065264 Capstan arrangement for a magnetic recording/reproduction apparatus Motonori Ohmori, Ikuo Nishida, Koji Iyota, Masao Iwakura, Tetsuo Itou 1991-11-12