NN

Nobumasa Nishiyama

HG HGST: 18 patents #85 of 1,677Top 6%
HI Hitachi: 14 patents #2,889 of 28,497Top 15%
HB Hgst Netherlands, B.V.: 9 patents #82 of 972Top 9%
WT Western Digital Technologies: 6 patents #532 of 3,180Top 20%
HC Hitachi Instruments Engineering Co.: 1 patents #18 of 126Top 15%
HM Hitachi Maxell: 1 patents #659 of 1,211Top 55%
NC Nhk Spring Co.: 1 patents #555 of 1,116Top 50%
HC Hitachi Computer Peripherals Co.: 1 patents #41 of 133Top 35%
Overall (All Time): #60,664 of 4,157,543Top 2%
47
Patents All Time

Issued Patents All Time

Showing 1–25 of 47 patents

Patent #TitleCo-InventorsDate
11419213 Multilayer flex circuit with non-plated outer metal layer Teruhiro Nakamiya, Satoshi Nakamura, Hiroshi Matsuda 2022-08-16
10594100 Flexible type electrical feed-through connector assembly Miki Namihisa, Kimihiko Sudo, Hiromitsu Masuda, Satoshi Nakamura, Hiroshi Matsuda 2020-03-17
10575424 Hermetic sealed electrical connector with high-speed transmission for hard disk drive Yuta Onobu, Takako Hayakawa, Kimihiko Sudo, Seong-Hun Choe, Takehito Nagata +2 more 2020-02-25
9870806 Hermetic sealing with high-speed transmission for hard disk drive Yuta Onobu, Takako Hayakawa, Kimihiko Sudo, Seong-Hun Choe, Takehito Nagata +2 more 2018-01-16
9841457 Pseudo flexure for disk drive and method of testing electronic circuit for disk drive Futa Sasaki, Hajime Arai, Tomohisa Okada, Kazuhiro Nagaoka 2017-12-12
9704520 Flex-HGA connector assembly for hard disk drive Shigeo Nakamura, Takuma Muraki, Teruhiro Nakamiya 2017-07-11
9570096 Read path compensation for SNR and signal transfer John Contreras, Tatemi Ido, Xinzhi Xing 2017-02-14
9558790 Hermetic sealing with high-speed transmission for hard disk drive Yuta Onobu, Takako Hayakawa, Kimihiko Sudo, Seong-Hun Choe, Takehito Nagata +2 more 2017-01-31
9275664 Shielded flex cable for use in a disk drive John Contreras, Albert John Wallash 2016-03-01
9165596 Magnetic recording disk drive with multiple preamplifiers and common transmission line with impedance compensation John Contreras, Joey M. Poss, Tuyen V. Trinh, Craig K. Yanagisawa, Yasunori Kubo 2015-10-20
9036305 Magnetic recording disk drive with write driver to write head transmission line with multiple segments having different numbers of conductive traces John Contreras, Eiji Soga, Kazuhiro Nagaoka, Rehan Ahmed Zakai 2015-05-19
9036306 Grounding for a hard disk drive suspension tail Yuji Soga, Kazuhiro Nagaoka, John Contreras, Albert John Wallash 2015-05-19
8982502 Hard disk drive with write assist based on detected conditions Akira Morinaga, Keiichi Nagasaka 2015-03-17
8675311 Interleaved conductor structure with wrap around traces John Contreras, Edgar D. Rothenberg, Rehan Ahmed Zakai, Yiduo Zhang 2014-03-18
8598460 Interleaved conductor structure with offset traces John Contreras, Edgar D. Rothenberg, Rehan Ahmed Zakai, Yiduo Zhang 2013-12-03
8373940 Magnetic head having a facing electrode pair for generating an electromagnetic field and applying energy to the magnetic recording layer Yohji Maruyama, Masafumi Mochizuki 2013-02-12
8310789 Conductor suspension structure and electrical connection assembly for transmitting complementary signals in a hard disk drive John Contreras, Xinzhi Xing 2012-11-13
8248732 Head-gimbal assembly including a transmission-line structure for high-density magnetic recording Yohji Maruyama 2012-08-21
8194356 Head-stack assembly including heat-dissipation and impedance-matching structure and hard-disk drive using the head-stack assembly Kazuhiro Nagaoka, Tatemi Ido, Yuji Soga 2012-06-05
8189281 Magnetic recording disk drive with write driver to write head transmission line having non-uniform sections for optimal write current pulse overshoot Michael Alex, John Contreras 2012-05-29
8102628 Disk drive and head assembly having hole sequences Ryohei Ota, Eiji Soga, Hiroyasu Tsuchida 2012-01-24
8068313 Microactuator, head gimbal assembly, and disk drive device Ryo Yoshida, Haruhide Takahashi, Shinobu Hagiya, Toshiki Hirano 2011-11-29
7983005 Thin film magnetic head with flying height adjustment capability Takayoshi Ohtsu 2011-07-19
7969681 Disk drive and control method thereof Noriaki Satoh, Toyomi Ohsawa, Yumi Nagano 2011-06-28
7804663 High frequency interconnect signal transmission lines Toshiki Hirano, Haruhide Takahashi 2010-09-28