James West is an American inventor, acoustical scientist, and professor who co-invented the foil electret microphone with Gerhard Sessler at Bell Laboratories. He was born on February 10, 1931, in Farmville, Virginia. The electret design is the basis of about 90% of the more than 2 billion microphones made each year, according to the Franklin Institute.
Who Is James West?
James Edward West, known as Jim West, is an American inventor and research professor at Johns Hopkins University. His career includes 3 main roles. Examples include acoustical scientist at Bell Laboratories, Bell Laboratories Fellow at Lucent Technologies, and professor at the Whiting School of Engineering.
What Are the Key Facts About James West?
The table below lists 10 biographical facts about James West. The left column names each attribute. The right column gives its value, based on the Johns Hopkins University, the National Inventors Hall of Fame, the Franklin Institute, and the National Academy of Sciences.
| Attribute | Value |
|---|---|
| Full name | James Edward West |
| Date of birth | February 10, 1931 |
| Place of birth | Farmville, Virginia (Prince Edward County) |
| Education | Bachelor’s degree in physics, Temple University (1957) |
| Known for | Foil electret microphone, co-invented with Gerhard Sessler |
| Bell Labs and Lucent career | 1957 to 2001 |
| Academic post | Research professor, Johns Hopkins University (professor emeritus per the university’s page) |
| Patents | 47 U.S. patents and over 200 foreign patents |
| Publications | Over 140 professional publications |
| Highest U.S. technology honor | National Medal of Technology (2006) |
What Are the 5 Main Milestones in James West’s Career?
James West’s career includes 5 main milestones between 1957 and 2006. They cover his start at Bell Labs, his invention, a hall of fame induction, a move to academia, and a national medal.
- 1957: Graduation from Temple University and start at Bell Laboratories
- 1962: Patent for the foil electret transducer
- 1999: Induction into the National Inventors Hall of Fame
- 2001: Retirement from Lucent and move to Johns Hopkins University
- 2006: National Medal of Technology
Where Did James West Grow Up and Study?
James West grew up in Farmville, Virginia, and studied physics at Temple University. His interest in electricity began around age 9, when a shock from an old radio left him determined to understand electricity, according to the National Academy of Sciences.
His parents warned him that segregation limited professional jobs for Black men in electronics. He entered Hampton University as a premed student and was drafted to serve in the Korean War. He then transferred to Temple University and switched to solid state physics. In the mid-1950s, he worked as a summer intern in the Acoustics Research Department at Bell Laboratories.
How Did James West Invent the Electret Microphone?
James West and Gerhard Sessler invented the foil electret microphone at Bell Laboratories to give acoustical researchers an instrument that measured human hearing more accurately. They used a metal-coated polymer film with a permanent electric charge to convert sound into electrical signals. The device was patented for Bell Labs in 1962.
Biography.com reports that the microphone was in mass production by 1968. The device replaced carbon microphones, which were less sensitive to sound.
How Does the Electret Microphone Differ From a Traditional Condenser Microphone?
The electret microphone differs from a traditional condenser microphone in cost, size, and voltage. The table below compares 3 features. The left column names the feature. The middle column describes the traditional condenser microphone. The right column describes the foil electret microphone. The Franklin Institute is the source.
| Feature | Traditional condenser microphone | Foil electret microphone |
|---|---|---|
| Cost | Expensive | Inexpensive |
| Size | Bulky | Small enough for phones and cameras |
| Voltage input | High voltage required | Low voltage, no large battery |
Where Is the Electret Microphone Used?
The electret microphone is used in 6 main product types. Examples include professional microphones, cell phones, hearing aids, baby monitors, video cameras, and toys. The Franklin Institute states that electret designs account for 90% of more than 2 billion microphones produced annually.
What Did James West Do at Bell Labs and Lucent?
James West worked at Bell Laboratories and its spin-off Lucent Technologies for more than 40 years, from 1957 until his retirement in 2001. He retired as a Bell Laboratories Fellow. He earned 47 U.S. patents and over 200 foreign patents during this period, according to the National Academy of Sciences.
He co-founded the Association of Black Laboratory Employees at Bell Labs in 1970. He also helped coordinate a summer research program that improved diversity for women and people of color across the AT&T operating companies, according to a Federal Communications Commission biography.
What Has James West Done at Johns Hopkins University?
James West joined Johns Hopkins University as a research professor in the Whiting School of Engineering after retiring from Lucent in 2001. His research includes 2 topics: transmitting stereophonic sound over the Internet for teleconferencing, and developing new transducers.
The university lists him as a professor of electrical and computer engineering and mechanical engineering. A separate university page lists him as professor emeritus. He also mentors students and supports programs that encourage more minorities and women to enter science, technology, engineering, and mathematics (STEM).
What Awards Has James West Received?
James West has received 5 major honors between 1998 and 2010. The table below lists each honor. The left column gives the year. The middle column names the honor. The right column gives the detail. Sources are the National Academy of Sciences and the Franklin Institute.
| Year | Honor | Detail |
|---|---|---|
| 1998 | Election to the National Academy of Engineering | Membership |
| 1998 | President of the Acoustical Society of America | Elected president |
| 1999 | National Inventors Hall of Fame | Induction |
| 2006 | National Medal of Technology | Highest U.S. award for technological innovation |
| 2010 | Benjamin Franklin Medal in Electrical Engineering | Awarded with Gerhard Sessler |
He also holds honorary doctorates from Michigan State University and the New Jersey Institute of Technology. He is a fellow of the Institute of Electrical and Electronics Engineers and the Acoustical Society of America.
Is There a Book About James West?
A book about James West is Spark: Jim West’s Electrifying Adventures in Creating the Microphone, written by Ainissa Ramirez and illustrated by Setor Fiadzigbey. The Library of Congress hosted a discussion of the book on January 29, 2026. Ramirez began her career at Bell Labs, where she met West.
People Also Ask
Who Invented the Electret Microphone?
James West and Gerhard Sessler invented the foil electret microphone at Bell Laboratories, and it was patented in 1962.
Where Was James West Born?
James West was born in Farmville, Virginia, in Prince Edward County, on February 10, 1931.
How Many Patents Does James West Hold?
James West holds 47 U.S. patents and over 200 foreign patents, according to the National Academy of Sciences.
Where Did James West Study?
James West earned a physics degree from Temple University in 1957 after starting at Hampton University.
What Is James West Known For?
James West is known for co-inventing the foil electret microphone, which is the basis of about 90% of microphones made today.
Is James West a Professor?
James West is a research professor at Johns Hopkins University, and one university page lists him as professor emeritus.
Who Is James West in Acoustics and Engineering?
James West is an American inventor and acoustical scientist recognized for co-inventing the foil electret microphone with Gerhard Sessler. He was born in Farmville, Virginia, in 1931, studied physics at Temple University, and worked at Bell Laboratories from 1957 to 2001.
He received the National Medal of Technology in 2006 and the Benjamin Franklin Medal in 2010. He continues his association with Johns Hopkins University as a researcher and mentor.
Sources
- Johns Hopkins University, Whiting School of Engineering: James West faculty profile
- National Academy of Sciences, Committee on Public Understanding: James Edward West biography
- The Franklin Institute: James E. West, Benjamin Franklin Medal laureate (2010)
- National Inventors Hall of Fame: James E. West
- Biography.com: James West Biography
- Library of Congress, Inside Adams: Spark with Ainissa Ramirez (January 2026)
- Federal Communications Commission: James West, Ph.D. biography