Business for
Corporations
Sales of acoustic components
We sell a variety of acoustic components, including electret condenser microphones and acceleration sensors that utilize electret condenser microphones, as well as MEMS microphones that can be reflow mounted onto circuit boards .
Electret condenser microphone is commonly called "ECM" and is used in various places in daily life. We offer a wide range of products, including high S/N products and products that can pick up ultra-low frequencies (0.5Hz).
Omnidirectional
Unidirectional
This is an acceleration sensor made using electret condenser microphone technology. It has higher sensitivity than general piezoelectric element acceleration sensors and can pick up signals such as biological information.
Vibration sensors
*Vibration sensors are supplied with lead wires.
Also called a silicon microphone, it is a microphone manufactured using semiconductor microfabrication technology. Compact and can be incorporated into various products. It has excellent heat resistance and can be reflow mounted.
We can provide the perfect product for your application.
If you are having trouble knowing which criteria to use when choosing, please feel free to contact us as we will introduce you to the most suitable product for your intended use.
If the catalog products do not meet the required specifications, customization is also possible.
Examples of customization
Addition of phase regulation
(omnidirectional only)
Adjustment of
sensitivity,
THD,SN ratio
and directionality
Adjustment of
frequency characteristics
(low freq./high freq. cut off, etc.)
Optimized performance at
the power supply
voltage used
Built-in high frequency noise
countermeasure components
(capacitors, ferrite beads, etc.)
...etc
*Customizable items vary depending on the product.
Please contact us for details.
Click here to
Development and design of
assembled products
Can be delivered in an easy-to-install state
It is possible to develop assembled products that take into account reliability such as heat resistance as well as ease of assembly .
Example of assembly
Lead wire
Rubber holder
Casing
FPC
Amplifier circuit
...etc
We have many achievements
in automotive / medical fields
Design and mass production of finished products
Primo has a rich track record in ODM.
From general use to special purpose products, we support product development with our extensive know-how.
Examples of development
Consumer use
External microphone
for camera / video camera
Microphone for headset
Headset
Bluetooth microphone
Lavalier microphone
...etc
For business
Hand microphone
Handset
Desktop microphone
Intercom
Predictive detection
(early detection of
equipment malfunctions)
...etc
Special use
Doze detection
Air vibration meter
(volcanic activity monitoring)
...etc
Process flow - From development to mass production
- Examination of requirement / Quotation
-
Summarize the customer's requests, conduct experiments, appearance and mechanical design, principle prototypes, etc., and create quotations.
- Prototype design
-
Create prototype drawings and based on them, create prototypes and check performance, appearance, etc., and identify problems.
- Mass product design / Process design
-
After deciding to go to mass production, we draw up mass production drawings, create molds, verify the validity of the first made sample of mass production parts (reliability, lifespan, failure rate, etc.) and simultaneously design manufacturing processes for mass production.
- Pre-production
-
Confirm the validity of the manufacturing process by producing small quantities using the same parts, processes, and operations as mass production.
- Mass production
-
After evaluation and approval, mass production begins
After outgoing inspection, shipping and delivery to specified destination.
Owned equipment
Evaluation / Analysis environment
Acoustic characteristics
High frequency measurement device
HATS：SAMAR Type 4700MHR (Southern Acoustic)
Anechoic chamber
Sound quality evaluation
AD/DA converter : ADI-2 Pro FS R Black Edition (RME)
Clean power system : ES-1200 (LUXMAN)
USB DAC / Network player : UD-701N (TEAC)
Stereo power amplifier : AP-701 (TEAC)
Speaker system : SB-G90M2 (Technics)
Monitor speaker : MSP5 STUDIO (YAMAHA)
Sound quality evaluation equipment
High frequency noise
Signal generator : SMB100A (Rohde & Schwarz)
Observation / Analysis
Trial production
Far-infrared reflow : UNI-5016A (ANTOM)
Digital microscope
Special inspection
SU-242 (espec)
PL-1J (espec)
TSA-43EL (espec)
DKN302 (Yamato Scientific)
Constant temperature chamber
Design / Development environment
2D/3D CAD
Creo Elements Direct Drafting
Creo Elements Direct Surfacing
PCB CAD
Integrated development environment
Production environment
Acoustic components assembly/inspection
Automatic assembly machine (manufactured in-house)
Acoustic inspection device (manufactured in-house)
Ultrasonic cleaning machine
Image dimension measuring machine : LM-1000 (KEYENCE)
Measuring projector : PJ-300 (MITUTOYO)
Clean booth / Acoustic testing machine
Metal processing
NC milling machine : ANC-74 (MAKINO)
Operation milling machine : KE-55 (MAKINO)
NC electrical discharge machine : EDGE2 (MAKINO)
Wire electrical discharge machine :
U32j (MAKINO)
V33 (MAKINO)
Wire electrical discharge machine
PUX80-KRC (WASHINO)
OBS25-2 (KOMATSU)
DY-30020 (YAMADA DOBBY)
Press machine
Resin processing
J75EⅡ (JSW)
J30E-C3 (JSW)
J35ELⅢ (JSW)
J35AD (JSW)
ROBO SHOT α-50C (FANUC)
Injection molding machine
Please feel free to contact us about anything related to sound!
Microphones, speakers, hearing aids, etc. We plan, develop, and produce a variety of equipment related to sound.
For corporate customers and individual customers Please feel free to contact us.