Inventor · disambiguated record
Yohei Katayama
Also filed as: KATAYAMA YOHEI
36 granted patents·9 pending applications·282 citations·filing 2002–2022
96Inventor score
Files withNIPPON TELEGRAPH & TELEPHONE27HITACHI AUTOMOTIVE SYSTEMS LTD6HITACHI ASTEMO LTD2HITACHI LTD2KATAYAMA YOHEI2
Top patents by PatentIndex Score
45 records- 0198US6817454B2Damping force control type hydraulic shock absorberTOKICO LTD·Filed 2002·Granted Nov 16, 2004·93 cites·13 claims
- 0296US8800729B2Damping force control type shock absorberYABE HIROYUKI·Filed 2012·Granted Aug 12, 2014·44 cites·6 claims
- 0393US10012282B2Shock absorberHITACHI AUTOMOTIVE SYSTEMS LTD·Filed 2015·Granted Jul 3, 2018·20 cites·14 claims
- 0493US8651252B2Shock absorberKATAYAMA YOHEI·Filed 2011·Granted Feb 18, 2014·27 cites·9 claims
- 0587US6981577B2Controlling damping force shock absorberHITACHI LTD·Filed 2004·Granted Jan 3, 2006·29 cites·9 claims
- 0683US9309948B2Shock absorberHITACHI AUTOMOTIVE SYSTEMS LTD·Filed 2014·Granted Apr 12, 2016·7 cites·10 claims
- 0783US8544619B2Fluid pressure shock absorberYAMAGUCHI HIROYUKI·Filed 2008·Granted Oct 1, 2013·12 cites·22 claims
- 0882US8794400B2Damping force adjustable shock absorberNAKADATE TAKAO·Filed 2009·Granted Aug 5, 2014·14 cites·11 claims
- 0982US7757826B2Damping force adjustable fluid pressure shock absorberHITACHI LTD·Filed 2008·Granted Jul 20, 2010·12 cites·17 claims
- 1079US8965632B2Suspension control apparatusHITACHI AUTOMOTIVE SYSTEMS LTD·Filed 2014·Granted Feb 24, 2015·8 cites·11 claims
- 1177US8798859B2Suspension control apparatusUCHINO TORU·Filed 2012·Granted Aug 5, 2014·10 cites·12 claims
- 1275US11617070B2Communication control device, communication control method and communication control systemNIPPON TELEGRAPH & TELEPHONE·Filed 2019·Granted Mar 28, 2023·2 cites·11 claims
- 1375US9856939B2Shock absorberHITACHI AUTOMOTIVE SYSTEMS LTD·Filed 2015·Granted Jan 2, 2018·3 cites·10 claims
- 1467US11261932B2Shock absorberHITACHI AUTOMOTIVE SYSTEMS LTD·Filed 2018·Granted Mar 1, 2022·1 cites·8 claims
- 1560US12206450B2Phase difference distribution estimation method and phase difference distribution estimation apparatusNIPPON TELEGRAPH & TELEPHONE·Filed 2020·Granted Jan 21, 2025·0 cites·4 claims
- 1658US12112885B2Solenoid coilHITACHI ASTEMO LTD·Filed 2020·Granted Oct 8, 2024·0 cites·4 claims
- 1752US12143924B2Station placement designing apparatus, station placement designing method and programNIPPON TELEGRAPH & TELEPHONE·Filed 2019·Granted Nov 12, 2024·0 cites·2 claims
- 1852US11991545B2Arrival rate estimation apparatus, arrival rate estimation method and programNIPPON TELEGRAPH & TELEPHONE·Filed 2020·Granted May 21, 2024·0 cites·8 claims
- 1950US11395324B2Wireless communication method, wireless communication system and base station deviceNIPPON TELEGRAPH & TELEPHONE·Filed 2019·Granted Jul 19, 2022·0 cites·4 claims
- 2050US2025365063A1Radio communication system, relay station device, terminal station device, and wireless communication methodNIPPON TELEGRAPH & TELEPHONE·Filed 2022·Application pending·0 cites
- 2150US2025365038A1Signal processing apparatus and signal processing methodNIPPON TELEGRAPH & TELEPHONE·Filed 2022·Application pending·0 cites
- 2249US12206458B2Communication apparatus and optical communication systemNIPPON TELEGRAPH & TELEPHONE·Filed 2020·Granted Jan 21, 2025·0 cites·5 claims
- 2349US11419113B2Wireless communication method, control device and wireless communication systemNIPPON TELEGRAPH & TELEPHONE·Filed 2019·Granted Aug 16, 2022·0 cites·6 claims
- 2448US12127231B2Communication control apparatus, communication control method and programNIPPON TELEGRAPH & TELEPHONE·Filed 2020·Granted Oct 22, 2024·0 cites·6 claims
- 2548US11765640B2Wireless communication system, control method, control apparatus, and control programNIPPON TELEGRAPH & TELEPHONE·Filed 2019·Granted Sep 19, 2023·0 cites·8 claims
- 2648US11432179B2Environment information acquisition method, environment information acquisition apparatus and environment information acquisition systemNIPPON TELEGRAPH & TELEPHONE·Filed 2019·Granted Aug 30, 2022·0 cites·18 claims
- 2747US12192783B2Station placement designing assistance apparatus, station placement designing assistance method and programNIPPON TELEGRAPH & TELEPHONE·Filed 2019·Granted Jan 7, 2025·0 cites·4 claims
- 2847US11546868B2Wireless communication method, control device, terminal and wireless communication systemNIPPON TELEGRAPH & TELEPHONE·Filed 2019·Granted Jan 3, 2023·0 cites·3 claims
- 2947US11412445B2Access point management method, access point management apparatus, and access point management systemNIPPON TELEGRAPH & TELEPHONE·Filed 2019·Granted Aug 9, 2022·0 cites·10 claims
- 3046US2023397114A1Wireless communication system, wireless communication method and terminal deviceNIPPON TELEGRAPH & TELEPHONE·Filed 2020·Application pending·0 cites
- 3146US2023379821A1Wireless communication system, wireless communication method and terminal deviceNIPPON TELEGRAPH & TELEPHONE·Filed 2020·Application pending·0 cites
- 3246US2021295214A1Learning apparatus, learning method and computer programNIPPON TELEGRAPH & TELEPHONE·Filed 2019·Application pending·0 cites
- 3345US2020216634A1Nonaqueous suspension exhibiting electrorheological effect, and damper using sameHITACHI AUTOMOTIVE SYSTEMS LTD·Filed 2018·Application pending·0 cites
- 3445US2022386180A1Control apparatus, wireless communication system, communication control method and programNIPPON TELEGRAPH & TELEPHONE·Filed 2019·Application pending·0 cites
- 3544US12149285B2Optical wireless communication system and optical wireless communication methodNIPPON TELEGRAPH & TELEPHONE·Filed 2020·Granted Nov 19, 2024·0 cites·7 claims
- 3644US12063520B2Station placement designing assistance apparatus, station placement designing assistance method and programNIPPON TELEGRAPH & TELEPHONE·Filed 2019·Granted Aug 13, 2024·0 cites·4 claims
- 3744US11785475B2Wireless terminal accommodation determination apparatus, wireless terminal accommodation determination method and programNIPPON TELEGRAPH & TELEPHONE·Filed 2020·Granted Oct 10, 2023·0 cites·6 claims
- 3844US11528726B2Wireless communication system, control method, control apparatus, and control programNIPPON TELEGRAPH & TELEPHONE·Filed 2019·Granted Dec 13, 2022·0 cites·7 claims
- 3944US11438890B2Wireless communication method, wireless communication device and wireless communication system for slot allocationNIPPON TELEGRAPH & TELEPHONE·Filed 2019·Granted Sep 6, 2022·0 cites·7 claims
- 4043US12305732B2Shock absorberHITACHI ASTEMO LTD·Filed 2021·Granted May 20, 2025·0 cites·15 claims
- 4143US12224797B2Optical wireless communication device and optical wireless communication methodNIPPON TELEGRAPH & TELEPHONE·Filed 2020·Granted Feb 11, 2025·0 cites·4 claims
- 4242US11477099B2Monitoring systemNIPPON TELEGRAPH & TELEPHONE·Filed 2020·Granted Oct 18, 2022·0 cites·5 claims
- 4340US11582766B2Wireless communication system, communication method, transmitter and receiverNIPPON TELEGRAPH & TELEPHONE·Filed 2019·Granted Feb 14, 2023·0 cites·3 claims
- 4438US2002121416A1Hydraulic cylinder apparatusFiled 2002·Application pending·0 cites
- 4536US2012305348A1Suspension apparatusKATAYAMA YOHEI·Filed 2010·Application pending·0 cites
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →