Inventor
Koji Asahi
Inventor
Tokyo, JP
Overview
Patents· 18 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H04Jprimary
H04JMultiplex communication22%
H04QSelecting22%
H04BTransmission19%
H01JElectric discharge tubes or discharge lamps7%
B60TVehicle brake control systems or parts thereof4%
B62LBrakes specially adapted for cycles4%
C12PFermentation or enzyme-using processes to synthesise a desired chemical compound or composition or to separate optical isomers from a racemic mixture4%
G02BOptical elements, systems or apparatus4%
G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein4%
H01SDevices using the process of light amplification by stimulated emission of radiation [laser] to amplify or generate light4%
PatentTitleYear
7,649,162'Optical feedback control unit, optical communication system, feedback control method, and recording medium for recording program'20107,350,881'Motorcycle with antilock brake system'20087,339,723'Optical transmission system, optical repeating apparatus, and quality supervising method'20086,724,953'Optical cross-connect apparatus, and its signal monitoring method'20046,704,508'Optical crossconnect, optical network device, and connection status supervisory method'20046,619,867'Optical transmission system'20036,595,821'Rotary anode for X-ray tube comprising an Mo-containing layer and a W-containing layer laminated to each other and method of producing the same'20036,570,685'Node for optical communication and wavelength-division multiplexing transmission apparatus having a ring structure composed of the same nodes'20036,532,089'Optical cross-connect, method of switching over optical path, optical ADM, and optical cross-connect network system'20036,337,886'Bit rate-selective type optical receiver, optical regenerative repeater and automatic bit rate discriminating method'20026,233,311'Rotary anode for X-ray tube comprising an Mo-containing layer and a W-containing layer laminated to each other and method of producing the same'20016,222,653'Optical communication node and wavelength division multiplexing optical transmission device having ring structure comprising the optical communication nodes'20016,195,186'Optical WDM ring network'20016,034,800'NXN light matrix switch'20006,023,359'Optical wavelength-division multiplex transmission equipment with a ring structure'20005,786,591'Optical filter with transmission wavelength band controlling function and receiver using the optical filter'19985,563,731'Monitor control signal receiving apparatus for optical fiber amplifier'19964,123,329'Process for producing L-lysine by fermentation'1978Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1978Patents assigned to KANEGAFUCHI CHEMICAL IND (1)· patent assignee history
1978Based in Takasago, JP· patent location history
1996–2008Patents assigned to NEC CORP (13)· patent assignee history
1996–2008Based in Tokyo, JP· patent location history
2001–2003Based in Toyama, JP· patent location history
2008Based in Hamana-gun, JP· patent location history
2010Patents assigned to ASAHI KOJI (1)· patent assignee history
2010Patents assigned to OGUMA TAKEFUMI (1)· patent assignee history
2010Patents assigned to RIKIYAMA HIROKI (1)· patent assignee history
2010Based in Minato-ku, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| NEC CORP | 13 | 1996–2008 |
| ASAHI KOJIself | 1 | 2010 |
| KANEGAFUCHI CHEMICAL IND | 1 | 1978 |
| OGUMA TAKEFUMI | 1 | 2010 |
| RIKIYAMA HIROKI | 1 | 2010 |
Locations
| Location | Patents | Span |
|---|---|---|
| Tokyo, JP | 13 | 1996–2008 |
| Toyama, JP | 2 | 2001–2003 |
| Minato-ku, JP | 1 | 2010 |
| Hamana-gun, JP | 1 | 2008 |
| Takasago, JP | 1 | 1978 |