Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
YF

Yasuki Fujii — 24 Patents

Fujitsu Limited: 23 patents #1,155 of 24,456Top 5%
Sumitomo Electric Industries: 1 patents #13,249 of 21,551Top 65%
Panasonic: 1 patents #13,316 of 21,108Top 65%
Kawasaki, JP: #1,025 of 15,035 inventorsTop 7%
Overall (All Time): #168,038 of 4,157,543Top 5%
24 Patents All Time
Yasuki Fujii has been granted 24 US patents while listed as an inventor at Fujitsu Limited. The first was granted in 1997 and the most recent in May 2023. Yasuki Fujii ranks #168,038 of 4,157,543 US inventors in our database (top 4.0%). Patent records list Yasuki Fujii in Kawasaki, JP.

Patents per Year

Patents granted per year, 1997 to 2023Bar chart with a peak of 5 patents in 2010.peak 51997: 1 patents19971998: 1 patents2000: 1 patents20002001: 1 patents2007: 1 patents20072009: 2 patents2010: 5 patents20102011: 2 patents2012: 1 patents20122013: 3 patents2014: 2 patents20142015: 1 patents2017: 1 patents20172018: 1 patents2023: 1 patents2023

Issued Patents All Time

Showing 1–24 of 24 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
11641356 Authorization apparatus, data server and communication system Junichi Suga, Izuru Sato, Shinya Yamamura 2023-05-02
9871580 Transmission apparatus and network control method Takao Naito 2018-01-16
9680566 Transmission apparatus and method Takao Naito 2017-06-13
9204209 Optical transmission apparatus 2015-12-01
8861956 Apparatus and method for switching paths in a wavelength-multiplexing network Ryoichi Mutoh, Toru Katagiri 2014-10-14
8712235 Transmission apparatus and network protection method Ryoichi Mutoh, Toru Katagiri 2014-04-29
8520685 Signal relay apparatus, node apparatus, network system, virtual-link generating method, path calculating method, and computer product Akira Nagata, Keiji Miyazaki, Shinya Kano 2013-08-27
8520690 Communication apparatus Kouichirou Amemiya, Shinya Kano 2013-08-27
8432792 Node apparatus, ring network, and protection path bandwidth control method Yuji Tochio, Shinya Kano, Ryoichi Mutoh 2013-04-30
8291113 Communication transmitting apparatus and communication transmitting method Keiji Miyazaki, Akira Nagata, Shinya Kano 2012-10-16
8068506 Signaling apparatus and signaling method Shinya Kano, Kouichirou Amemiya 2011-11-29
8064365 Relay node Kouichirou Amemiya, Shinya Kano 2011-11-22
7804788 Ring type network system including a function of setting up a path Keiji Miyazaki, Shinya Kano, Akira Nagata 2010-09-28
7706690 Relay node in optical networks Akira Nagata, Keiji Miyazaki, Shinya Kanoh 2010-04-27
7680136 Method and apparatus for allocating label to path in ring network Keiji Miyazaki, Shinya Kano, Akira Nagata 2010-03-16
7657180 Communication path calculation method and module Keiji Miyazaki, Shinya Kanoh, Akira Nagata 2010-02-02
7653308 Path routing computation method and optical communication network applying path routing computation method Keiji Miyazaki, Shinya Kanoh, Akira Nagata 2010-01-26
7639607 Signaling system for simultaneously and autonomously setting a spare path Keiji Miyazaki, Shinya Kanou, Akira Nagata, Takuya Okamoto, Tomoyuki Harada 2009-12-29
7633857 Node and method of setting backup path Keiji Miyazaki, Shinya Kano, Akira Nagata 2009-12-15
7188280 Protecting route design method in a communication network Norihiko Shinomiya, Keiji Miyazaki 2007-03-06
6189025 Method for controlling communication paths and communication control system in communication network Takao Ogura, Kohei Iseda, Takafumi Chujo, Masaaki Ueki 2001-02-13
6148631 Silencer and air conditioner Masahito Watanabe, Yoshimasa Katsumi, Shotaro Ito, Masanori Tanigawa, Yasuhiro Asaida 2000-11-21 $337,000
5781528 Path switching system and method Yasuyuki Sato, Keiji Miyazaki, Mitsuhiro Azuma, Takafumi Chujo 1998-07-14
5636206 System for achieving alarm masking processing Shigeo Amemiya, Yuichi Matsuda, Takao Ogura, Koji Tezuka, Hiromi Ueda +1 more 1997-06-03