TOHO Electronics INC.
Summary
- // what this is
- TOHO Electronics is registered to MAC prefix
F0:B0:22and 1 more in the IEEE OUI database. When a device's MAC address begins withF0:B0:22, that block was registered by TOHO Electronics — the OUI identifies the maker of the network hardware, which is not always the brand on the device. - // analyst note
- Both OUIs are full company-owned /24 blocks, not shares of an IEEE-RA multi-vendor base, so a device carrying either prefix can be attributed to TOHO Electronics with confidence. The specific product model behind a given MAC is not confirmed — no spec sheet was found naming F0:B0:22 or D4:1E:35 directly — so device identification beyond vendor level should stay at the product-category level.
About this vendor.
A MAC address beginning F0:B0:22 or D4:1E:35 identifies hardware manufactured by TOHO Electronics INC., a Japanese industrial instrumentation company whose paperless recorders, temperature controllers, and sensors are the likeliest source of a networked device carrying either prefix.
TOHO Electronics holds two separate MA-L (/24) OUI assignments in the IEEE registry, both registered to the same address in Sagamihara, Kanagawa, Japan. Neither prefix is a shared IEEE-RA base — each is a full company-owned block, so no cross-vendor sharing caveat applies here.
Founded in 1963, the company is a long-running manufacturer of measurement and control instruments, corroborated by its own English-language corporate site, a DigiKey supplier listing, and a JEMIMA (Japan Electric Measuring Instruments Manufacturers' Association) member listing.
Its product lines include the TRM-series paperless/hybrid recorders, temperature and humidity sensors, semiconductor test probe cards, and a wireless sensor platform called neoMOTE launched in 2017. No single product page ties either OUI to a specific model number, so the device-to-prefix link is inferred from product category rather than confirmed against a spec sheet.
No CVE, security advisory, or malware/botnet association is recorded for TOHO Electronics or its recorder and controller product lines as of a September 2026 search.
- Prefixes
- F0:B0:22 and D4:1E:35, both MA-L (/24) assignments (
the IEEE MA-L registry F0B022,the IEEE MA-L registry D41E35) - Company founded
- 1963, Sagamihara, Kanagawa, Japan (toho-inc.com/english/)
- Device class
- Paperless/hybrid recorders (data loggers), temperature controllers, temperature/humidity sensors, semiconductor test probe cards (toho-inc.com/english/)
- Also seen on
- neoMOTE wireless sensor network / IoT platform, launched 2017 (toho-inc.com/english/)
- Security status
- No CVE, advisory, or malware association recorded as of a September 2026 search
- Company
- TOHO Electronics INC. [Confirmed] (
the IEEE MA-L registry F0B022,the IEEE MA-L registry D41E35) - Registry assignments
- Two MA-L (/24) OUI blocks — F0:B0:22, D4:1E:35 [Confirmed] (
the IEEE MA-L registry F0B022,the IEEE MA-L registry D41E35) - Registered address
- 1-13-21 Tanashioda, Chuo-Ku, Sagamihara-City, Kanagawa, Japan 252-0245 [Confirmed] (
the IEEE MA-L registry F0B022) - Additional registry classes
- No MA-M or MA-S assignments found for this registrant [Confirmed] (the IEEE MA-S registry, the IEEE MA-M registry)
- Website
- https://toho-inc.com/english/ [Confirmed]
- Industry
- Industrial measurement and control instrumentation [Likely] (https://toho-inc.com/english/)
- Device types
- Paperless/hybrid recorders, temperature controllers, temperature/humidity sensors, semiconductor test probe cards [Likely] (https://toho-inc.com/english/)
- Notable products
- TRM-series paperless recorders (e.g. TRM-00J, TRM-10C); neoMOTE wireless sensor platform (2017) [Likely] (https://www.manualslib.com/manual/3040538/Toho-Electronics-Trm-10c.html, https://toho-inc.com/english/)
- Registration date
- Unknown — IEEE does not publish OUI assignment dates [Unknown]
- Security/CVE association
- None recorded as of a September 2026 search [Unknown]