Inventor
Kenichi Takai
Inventor
Tokyo, JP
Overview
Patents· 14 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H04Wprimary
H04WWireless communication networks40%
H04BTransmission20%
G01FMeasuring volume, volume flow, mass flow or liquid level10%
H01QAntennas, i.e. radio aerials10%
C08LCompositions of macromolecular compounds5%
C09DCoating compositions, e.g. paints, varnishes or lacquers5%
C09KMaterials for miscellaneous applications, not provided for elsewhere5%
H03FAmplifiers5%
PatentTitleYear
8,619,660'Mobile communication system, common channel transmission control device, and common channel transmission control method used in the system and device'20138,457,625'Mobile communication system, base station, transmission power control method, and program'20138,069,734'Multi-vortex flowmeter integrating pressure gauge'20117,454,168'Radio communication system, base station apparatus, and downlink transmission directing characteristic method used therefor'20086,571,097'Adaptive antenna directivity control method and system therefor'20036,509,865'Adaptive antenna device operable in accordance with different algorithms'20036,140,961'Directivity control circuitry for an adaptive antenna'20006,128,507'Method for forcibly disconnecting failure mobile station from cellular mobile communication network'20006,124,388'Water repellent composition, fluorocarbon polymer coating composition and coating film therefrom'20006,097,947'Method for detecting failure mobile station in cellular mobile communication network through transmission power control'20005,978,412'Spread spectrum communication system'19995,771,451'Method of transmission power control in a cellular mobile communication system and apparatus thereof'19985,736,647'Vortex flow meter detector and vortex flow meter'19985,532,642'Feedforward-type distortion compensation circuit'1996Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1996–2013Patents assigned to NEC CORP (11)· patent assignee history
1996–2013Based in Tokyo, JP· patent location history
1998–2011Patents assigned to OVAL CORP (2)· patent assignee history
2000Patents assigned to NIPPON TELEGRAPH & TELEPHONE (1)· patent assignee history
2000–2003Based in Saitama, JP· patent location history
2000Based in Musashino, JP· patent location history
2011–2013Patents assigned to TAKAI KENICHI (3)· patent assignee history
2011Patents assigned to ODA SHINJI (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| NEC CORP | 11 | 1996–2013 |
| TAKAI KENICHIself | 3 | 2011–2013 |
| OVAL CORP | 2 | 1998–2011 |
| NIPPON TELEGRAPH & TELEPHONE | 1 | 2000 |
| ODA SHINJI | 1 | 2011 |
Locations
| Location | Patents | Span |
|---|---|---|
| Tokyo, JP | 9 | 1996–2013 |
| Saitama, JP | 4 | 2000–2003 |
| Musashino, JP | 1 | 2000 |