Gugendo LLC.

OSHINAGAKIDevelopment

Gugendo is Prototyping desktop, mobile, and cloud applications Cloud server infrastructure (ASP, AWS, GCP, Azure) Design and development of microcontroller-based circuit boards a company based in Itabashi, Tokyo

What We Do

Gugendo specializes in product development that spans both software and hardware.

Work
Requests

Our Products

We turn fun prototypes from our daily R&D into products that are not essential to daily life, but add a little joy.

Featured
Products

We can build what you've always wanted.

All Gugendo needs is your vision. Why not bring your ideas to life with cutting-edge technology?

Free
Consultation

June 2026 Website Update
Rather than replacing everything (and discarding what works), we keep what is good as it is.
Gugendo looks beyond generative AI alone—we consider "retrofit."
* This page was produced using our in-house local generative AI server.

EduKits Series, Volume 2
2026/5/12 Sample shipments of the Nitrocellulose Flame Color Experiment Kit have begun.
Experience the wonder of flames and cotton while exploring science in a fun way.
Available soon through our online shop. Pre-orders accepted via the contact form.

Gugendo CSR Page Now Available
March 2026: We have published our CSR activities page.
Gugendo will continue activities for society and the community.
Click here or the image above to visit the page.

Happy New Year
2026/1/1 Happy New Year.
1/10 A limited New Year's card site will also be published. Enjoy videos and music via the link.

Gugendo 3rd Anniversary
12/14 We have released a new song. Please listen!
(The YouTube link has moved to the New Year's card site.)

Thank You for Visiting the Itabashi Industrial Trade Fair

The 29th Itabashi Industrial Trade Fair — Manufacturing & Processing Technology Expo 2025 has closed successfully.
Thank you very much for your visits.

Update

We have obtained a secondhand dealer's license so that customers can use our services with confidence.

東 京 都 公 安 委 員 会 許 可

第 305552516797 号

古 物 商

合同会社 具現堂


NewsWhat's New

2026/5/12New Product
Nitrocellulose Flame Color Experiment Kit information has been published.
2026/3/25Activity Report
Our CSR activities page is now available.
2026/1/1New Year's Greeting
Happy New Year.
2024/12/14New Song / Year-End Holiday
Today, December 14, is our founding anniversary. We released a new song on YouTube to mark our 3rd anniversary.
We are closed for the New Year holiday from January 1 through January 3.
2025/10/12Trade Fair
The 29th Itabashi Industrial Trade Fair — Manufacturing & Processing Technology Expo 2025 has closed successfully.
Thank you very much for your visits.
2025/4/22Event
Our representative Murakami served as an instructor at the Itabashi Science Club.
2025/4/3Page Update
We have obtained a secondhand dealer's license.
2025/2/14Event
New project in progress! Details coming soon! (3/30) Short video now available on GENKI LABO's science prep room channel.
2025/1/1New Year's Greeting
Happy New Year.
2024/12/13Year-End Holiday
We are closed on December 14 for our founding anniversary. We are also closed from January 1 through January 3 for the New Year holiday.
2024/11/17Trade Fair
The 28th Itabashi Industrial Trade Fair — Manufacturing & Processing Technology Expo 2024 has closed successfully.
Thank you very much for your visits.
2024/9/1Page Update
★彡
2024/1/1New Year's Greeting
Happy New Year.
2023/12/8Year-End Holiday
We are closed on December 14 for our founding anniversary. We remain open as usual during the rest of the year-end period.
2023/11/1Trade Fair
The 27th Itabashi Industrial Trade Fair — Manufacturing & Processing Technology Expo 2023 has closed successfully.
Thank you very much for your visits.
2023/9/1Page Update
【Connecting IT and Itabashi's workshops through retrofit】
Company information has been updated.
2023/7/27Site Maintenance
Updated the footer icon to the X logo following Twitter's rebrand, and added Threads.
2023/4/2SNS Launch
We have opened Gugendo LLC social media accounts: YouTube / Facebook / Instagram / Twitter / Threads
* We do not post frequently, but we do check messages.
2023/2/1Work Requests
Starting in March, we have begun accepting project requests.
2022/12/31Year-End Business
Gugendo is closed from January 1 through January 3.
2022/12/14Event
Our website has been launched.

We can make it happen.Gugendo is a company that turns your ideals into reality.

PC & Mobile Software, 3DCG, AI/ML

Our experienced engineers develop software for Windows, Android, iOS, and Linux, as well as AI, ML, and web projects.

Software

Device Integration, PC/Mobile Apps, IoT Microcontroller Prototyping

We develop communication modules (Wi-Fi, Bluetooth, RF, NFC), prototype IoT firmware for Atmel/PIC microcontrollers, and integrate PC and mobile applications.

Hardware

CAD Design, Electronic Circuit Design, Sheet Metal & Painting

Prototyping and small-batch production using 3D printers, laser cutters, and UV printers. We also offer CAD design, PCB development, sheet metal welding, and painting.

PCB &
Sheet Metal