Our industrial accomplishments - patents, publications and more
1969 – 1972 Philips Gloeilampenfabriek N.V. at Eindhoven, The Netherlands; (The Research Labs & Scientific Instruments) Electron Microscopy, Electron Optics, EDAX X-ray analysis.
1972 – 1974 Technical University of Eindhoven, The Netherlands; doing research in semiconductor production technology, using Chemical Vapour Deposition technique (together with Prof. H. Groendijk (deceased)).
1974 – Present: Du Pont Connectors (Du Pont de Nemours Electronics), subsequently renamed Berg Electronics; now called FCI, belonging to Framatome / Areva Group; working in diverse fields and technology development related to Electrical Connector Design, Insulation Displacement Connector (IDC), Press-In connection (MetralTM 4000 development, Soldering Technology, Pin-In-Paste connection, Crimp connection, Stamping Technology and Galvanic Plating process, Palladium – Nickel and Tin/ Lead composite coatings, High-Speed Electrical connector development in excess of 2.5 Gbps Telecommunication interconnects, Integration of Electro-to-Optical device (POLA) in conventional copper interconnection devices on Backplane, Surface Mounted Connector development, Ball Grid connection, liaison and coordination of International Intellectual Property Management and Engineering Consultancy, e.g. in Global Miniaturization and also in Global team for Surface Mounted components.
International Experience:
- India: initially citizen and received early education up to Bachelor of Electrical Engineering study at
University of Roorkee (Presently also known as Indian Institute of Technology), including staff apprenticeship withTata Hydroelectric in Bombay. - UK: Study and Research at the Fitzwilliam College, Cambridge, United Kingdom.
- USA: Du Pont Electronics in Harrisburg and Wilmington for one year.
- France: Two separate periods for Du Pont Electronics in Besancon, France – each for a period of 9 months.
- The Netherlands: Working experience in Du Pont Electronics / Berg Electronics /FCI for 28 years; previous to this approx 2 years each at the Technical University of Eindhoven and at Philips Eindhoven.
International Patents (primarily US and European Patent):
- At Philips: 3 Patents as part of their Research Laboratory in field of Electron Optics.
- At Du Pont / Berg / FCI: 48 patents in the field of Electrical Connectors and Electro-Optical connector transducer development.
PATENTS (selection):
| INVENTOR(s) | Title | Patent No. | Filing/GrDate |
|
V Stratum, Mitra & Zalm |
Lanthanum Boride cathode |
NL 7207275 |
May’72 |
|
V Stratum, Mitra & Zalm |
Lanthanum Boride cathode |
NL 7207276 |
May’72 |
|
V Stratum & Mitra |
Lanthanum Boride Dispenser cathode |
NL 167796 |
May’72 |
|
Belopolsky& Mitra |
Nano B, Terminal for High Density Connector |
US 5478248 |
12-17-‘93 |
|
Mitra |
An Insulation Piercing Contact |
US 5080605 |
10-31-‘90 |
|
Mitra |
Cover Device |
US 5104338 |
02-11-‘91 |
|
Mitra |
Electrical Connector device and colored strip |
US 5114363 |
04-11-‘91 |
|
Mitra |
Insulation Piercing Connector with Clamping Lip |
US 5127153 |
06-19-‘91 |
|
Mitra |
Insulation Displacement Contact and Connector |
US 5269700 |
04-29-‘92 |
|
Mitra |
Electrical Connector (V90 Receptacle) |
NL 9101487 |
09-03-‘91 |
|
Mitra |
Electrical Connector (V90 Plug) |
EPO 0623248 |
01-22’93 |
|
Mitra |
Connector Having Fixing Means for Mounting |
US 5277618 |
09-14-‘92 |
|
Mitra |
V-90 Shields |
PCTNL93/00022 |
01-22-‘93 |
|
Mitra & Schalk |
A system and connectors for interconnection |
PCTNL93/00023 |
01-22-‘93 |
|
Mitra |
Flat Back Card Connector Systems |
PCTNL92.02262 |
12-24-‘92 |
|
Mitra |
Eye of the Needle Hold-down with centering |
PCTNL94/00075 |
04-12-‘94 |
|
Mitra & Phamvan |
Floating Contact Surface Mount Tails |
PCTNL94/00253 |
10-14-‘94 |
|
Mitra & Phamvan |
Electrical connector for mounting on PCB surf |
EP 0723712B1 |
10-14-‘94 |
|
Mitra |
Right Angle Wafer Plus Anvil for R/A conn. |
PCTNL94/00313 |
12-09-‘94 |
|
Mitra & Bekker |
Selectively Metallized Plastic Hold-Down con |
EPO 94202141.1 |
07-22-‘94 |
|
Mitra,Bekker,& Paagman |
Connector Provided with Metal Strips as Contact members, conn. Assembly comprising |
EPO 94202143.7 & US 5727956 |
07-22-’94 17-03-‘98 |
|
Mitra & Paagman |
Right Angle Connector with separate tail unit |
EPO 95201004.9 |
04-19-‘95 |
|
Mitra & Schalk |
Contact Swaging |
EPO 95203317.3 |
12-01-‘95 |
|
Lwee & Mitra |
Solder Foot Flat Back Card Connector |
EPO 93918216.8 |
05-07-‘97 |
|
Mitra |
Stress-Less Contact Retention (EL-6171) |
US (File 97-06-25) NL 192314 |
03-04-‘97 |
|
Mitra |
Low Stress Terminal with solder slug EL6172 |
US (File 97-06-28) NL 192067 |
01-07-‘97 |
|
Mitra |
TISS terminals (EL-6173) |
US (File 97-06-33) |
|
|
Mitra,Paagman, Morlion& v Zanten |
Shield Accessory Plate for Plug (Interstitial contact location) EL-6181 |
US Appl 60/071744 |
01-16-‘98 |
|
Mitra & Page |
Shortened Receptacle Connector (EL6169) |
|
1998 |
|
Mitra |
Connector en stekker of contrastekker |
NL 1012694 |
07-23-‘99 |
|
Mitra & Schalk |
Smooth contact terminals, method of manafact |
EP 0 777306B1 |
04-06-‘97 |
|
Mitra |
Connector for low and high frequency applic |
NL 2624/C 2252-Aa |
06-01-‘99 |
|
Mitra |
Connector, contact element for use in same |
NL 2625/C 2253-Aa |
06-01-‘99 |
|
Mitra |
Contact Element for establishing a press-fit connection |
NL 2626/C 2254-Aa |
06-01-‘99 |
|
Mitra |
Connector and method for manufacturing con |
NL 1012345 |
06-16-99 |
|
Mitra |
Connector and contact elements of the same |
NL 1012361 |
06-16-‘99 |
|
Mitra |
Connector |
NL 1012364 |
06-16-‘99 |
|
Mitra |
Connector |
NL 1012365 |
06-16-‘99 |
|
Mitra |
Connector |
NL 1012366 |
06-16-‘99 |
|
Mitra |
Connector |
NL 1012363 |
06-16-‘99 |
|
Mitra |
Contactelement |
NL 1012358 |
06-16-‘99 |
|
Mitra |
Afgeschermd connectorsamentsel |
NL 1012357 |
06-16-‘99 |
|
Mitra |
Connector |
NL 1012360 |
06-16-‘99 |
|
Mitra |
Connector |
NL 1012367 |
06-16-‘99 |
|
Mitra |
Contact element |
NL 1012359 |
06-16-‘99 |
|
Mitra |
Connector housing with shield plate & manuf. |
NL 1012356 |
06-16-‘99 |
|
Mitra |
Method to provide solder reservoir in terminal |
NL 1012362 |
06-16-‘99 |
|
Mitra |
Connector |
NL 1012366 |
06-16-‘99 |
|
Stricot, Mitra & van Koetsem |
Module de connexion electro-optique et dispositif optoelectronique emetteur-recepteur |
EPO applic. FCI C2835 & C2717 |
10-18-‘00 |
|
Mitra & Droesbeke |
Cable Connector, High Speed |
EPO applic. FCI C 3445 |
12-23-‘02 |
| Mitra | Many more to come! |
International Publications:
- N. Mitra: M.Sc. dissertation, UK, 1969
- N. Mitra: « A small high current density thermoinic emitter” Journal of Applied Physics, (UK), 1971, vol. 4, p 39-46.
- N. Mitra: “The operation of a convergent flow electron gun for thin beams” Journal of Applied Physics, (UK), 1971, vol. 4, p 47-53.
- A.J. van Stratum, N. Mitra: “Lanthanum Dispenser Cathodes” Philips Research Laboratory report 4602, (Eindhoven, The Netherlands).
- A. J. van Stratum, N. Mitra: “Directly heated Lanthanum Boride Cathodes” Philips Research Newsletter, Nov 1971, vol 31, (Eindhoven, The Netherlands).
- N. Mitra, C.J. Heynen: “Apparatus for Chemical Vapour Deposition of Silicon Dioxide from Silane gas” Review of Scientific Instruments (USA), June 1976, vol 47 No. 8.
- N. Mitra: “An evaluation of Insulation Displacement electrical contacts” 25th. Anniversary Meeting of the Holm’s Conference on Electrical Contacts, Chicago, Illinois (USA), p 99-108.
- N. Mitra: “An evaluation and properties of tin-lead electro-deposits for connector applications” Internal Dupont report 1982 (world-wide)
- N. Mitra: “An evaluation of GXTTM plating for electrical contacts” Internal Dupont report 1984 (world-wide)
- N. Mitra: “Surface-Mount connector devices” Dupont Global Miniaturization Committe 1991 (world-wide)
- P.C. Bogers, N. Mitra, C. Schaafsma: Book “Stamping Process Parameters” as Engineering Consultancy Group for Du Pont de Nemours, Wilmington USA (1984).
- Y. Stricot, N. Mitra, N. van Zijl: An EEC sponsored project “Moving the opto-electronic interface inside the connector” Electronic Engineering (UK), April 2001
- Y. Stricot, N. Mitra, N. van Zijl: An EEC sponsored project “1.25 Gbit/s sicher im Griff”; Frontcover story: "Steckverbinder (POLA electro-optical transducer)" Elektronik Praxis (Germany), Nr. 1 – 15 Jan 2001, p 29 – 32.
