Our industrial accomplishments - patents, publications and more


Experience:

1969 â 1972 Philips Gloeilampenfabriek N.V. at Eindhoven, The Netherlands; (The Research Labs & Scientific Instruments) Electron Microscopy, Electron Optics, EDAX X-ray analysis.

1972 â 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 â 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 with Tata 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 â 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: âAn 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 â 32.
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