HK

Hiroki Kitahori

HG HGST: 15 patents #91 of 1,677Top 6%
IBM: 7 patents #14,640 of 70,183Top 25%
HB Hgst Netherlands, B.V.: 2 patents #341 of 972Top 40%
WT Western Digital Technologies: 1 patents #1,787 of 3,180Top 60%
Overall (All Time): #162,802 of 4,157,543Top 4%
25
Patents All Time

Issued Patents All Time

Showing 1–25 of 25 patents

Patent #TitleCo-InventorsDate
10943614 Load/unload ramp mechanism for reduced cracking Jianqian Xu, Shin Nagahiro, Nobuyuki Okunaga 2021-03-09
8958179 Managing resonance frequency of hard disk drive voice coil motor Michio Ueha, Takeshi Saito, Kohji Takahashi 2015-02-17
8493686 Low profile hard-disk drive enclosure cover which includes a flange recess for accommodating a SATA connector Shinichi Kimura, Nobuyuki Okunaga, Takao Suzuki 2013-07-23
8320085 Disk drive including a latch configured to lock an actuator in response to an external force Takao Suzuki, Nobuyuki Okunaga, Kohji Takahashi 2012-11-27
8125739 Disk drive device and magnetic disk drive Takao Suzuki, Kenji Tomida, Takeji Sumiya 2012-02-28
8035915 Magnetic disk drive having circuit board apertures fitted with protrusions to achieve efficient layout of circuit elements Yasuhiro Kotani, Akira Morita 2011-10-11
7852595 Magnetic disk unit and manufacturing method thereof Kyo Akagi, Takayuki Honda, Yasuo Kojima 2010-12-14
7652849 Flexible cable positioning structure and magnetic disk drive Hirofumi Nozaki, Hiroshi Matsuda 2010-01-26
7570460 Boss location to adjust head attitude Shinichi Kimura, Satoshi Matsumura, Akira Morita 2009-08-04
7545598 FPC-connector connecting structure and magnetic disk Shinichi Kimura, Akira Morita 2009-06-09
7505230 Rotating disk storage device and latch method thereof Takanori Kawakami, Shinichi Kimura, Satoshi Matsumura 2009-03-17
7428122 Hermetically sealed disk drive with low height Shinichi Kimura, Hirofumi Nozaki 2008-09-23
7420782 Rotating disk storage device Takanori Kawakami, Shinichi Kimura, Hiroshi Matsuda 2008-09-02
7298591 Rotating disk storage device with a retracting actuator head suspension assembly Satoshi Matsumura, Kenji Kuroki, Shinichi Kimura 2007-11-20
7070421 Rotating disk storage device having connection structure between FPC and printed board Hirofumi Nozaki, Shinichi Kimura, Kenji Kuroki 2006-07-04
7064920 Disk drive and breather filter having multiple ventilation paths and method of inspecting same Takayuki Fujiwara, Hiroshi Matsuda 2006-06-20
7030527 Data storage device with mechanism to control rotation of spindle motor Shingo Tsuda, Mutsuro Ohta, Kazutaka Okasaka 2006-04-18
6900956 Disk device and data-erasing method Kenji Kuroki, Hiroshi Matsuda, Satoshi Noguchi, Mutsuro Ohta, Keishi Takahashi +1 more 2005-05-31
6822823 Hard disk drive with electrically conductive sheet for electrostatic discharge protection Kazushi Tsuwako, Kenichi Kuramoto, Hiroshi Matsuda 2004-11-23
6661604 Plate-like apparatus, rotating body built-in device, and disk device Masataka Hashizume, Hiroshi Matsuda, Satoshi Matsumura 2003-12-09
6486578 Spindle motor and disk unit David W. Albrecht 2002-11-26
6351343 Arrangement structure of the printed circuit board and the interface cable connector of a magnetic disk drive Yuzo Nakagawa, Kiyoshi Satoh, Naoyuki Kagami 2002-02-26
6327115 Disk drive apparatus, attachment structure, and attachment method Kiyoshi Satoh, Masakazu Sasaki, Sunao Nemoto, David W. Albrecht, Gregory Michael Frees 2001-12-04
5317462 Cover seal for magnetic disk enclosure having stepped mating surfaces Yoshitaka Kakizaki, Kazuhiko Takada 1994-05-31
5124867 Actuator returning and holding device for a disk unit Toshiaki Komatsuzaki, Yoshimi Masuda 1992-06-23