Features patented technology that makes LEDs glow without batteries! Cases for the iPhone 17/18 series, meticulously designed using the circuit board’s wiring patterns, will go on sale starting October 7.
~Release of Original Designs, Including the Tokyo Loop Line Map, and Licensed Products~
株式会社電子技販

FLASH Tokyo Loop Line Map iPhone 17/18 Pro Max Case—Green
Denshi Gihan Co., Ltd. (Headquarters: Suita City, Osaka Prefecture; President: Hiroki Kitayama) will begin selling the “FLASH iPhone 17/18 Pro Case,17/18 Pro Max Case” from the “FLASH Series”—a line of PCB-art goods created using the company’s printed circuit board design and manufacturing technologies, equipment, and design capabilities—will go on sale sequentially starting Wednesday, October 7, 2026, at the moeco direct sales shop and authorized retailers.In addition to the “Tokyo Subway Map,” which depicts the Tokyo subway network using PCB wiring patterns, the company will simultaneously release the “Kansai Subway Map” and “Hokusai’s ‘The Great Wave off Kanagawa.’” Furthermore, the company will begin selling licensed products featuring designs from Evangelion, Mobile Suit Gundam, Type-3 Ki Ryu, and Star Wars.
A major feature of the “FLASH Series” is not only the intricate circuit board design but also the inclusion of a circuit that causes the LEDs to light up via radio waves.
*The circuit that causes LEDs to light up via radio waves was patented in 2020 (Patent No. 6667777).
Details URL: https://pcbartmoeco.jp/
[Product Features]
This product was created with great care by PCB professionals. It was designed using PCB CAD software, and electronic components are mounted (soldered) onto an actual printed circuit board. We handle the CAD design in-house and mount the components using the surface-mount production line at our headquarters factory—the same line we use for our core business.Since the PCB CAD software used to design the boards is not general-purpose design software, each line is drawn individually with a mouse. After the electronic components are mounted, to protect them, each board is manually coated one by one in a cleanroom (Class 1000) until it is completely filled with resin via surface tension, and then vacuum-heated.We then manually remove any air bubbles attached to the components and dust from the resin surface. Designed and manufactured in Japan, all products are RoHS-compliant (lead-free). They come packaged in gift boxes, making them ideal for gifts. The circuit boards are gold-plated, and the cases feature strap holes.
We’ve created a video on YouTube showing the manufacturing process for the FLASH Tokyo Line Map iPhone Case—please take a look.
[Important Notice]
The Tokyo Loop Line Map, Kansai Loop Line Map, and “The Great Wave off Kanagawa” designs are compatible with MagSafe and wireless charging. However, depending on the design, some products may not support MagSafe or wireless charging. Please check our direct sales shop at https://www.moeco.jp.net/ for details.
For the iPhone 17/18 series, we are releasing two models: one for the 17/18 Pro and one for the 17/18 Pro Max.
For the 17/18 Pro and 17/18 Pro Max models, there is insufficient PCB space for the antenna circuitry, so antenna wires have been added to the inside of the case for reinforcement. Please avoid touching the antenna wires and tape.
Additionally, due to rising costs of raw materials—including gold and silver—and labor, we have had to raise the price compared to the iPhone 17/18 cases.
<Why Does the “FLASH iPhone Case” Glow?>
The LED lights up by converting the radio waves emitted by the iPhone itself into electrical power and boosting the voltage. It does not glow under normal conditions but lights up randomly when the iPhone emits strong radio waves. The mechanism works as follows: the antenna circuit on the back of the circuit board captures the strong radio waves emitted by the iPhone and routes them to the front of the board.An amplification circuit is built into the front surface, which gradually increases the voltage and current to make the LED light up. There is only one LED. We obtained a patent in 2020 for the circuit that makes the LED light up using radio waves (Patent No. 6667777).
■FLASH Tokyo Subway Map iPhone Case
The FLASH Tokyo Line Map iPhone Case features a red LED mounted at Tokyo Station that lights up without a battery. A 2mm red LED is mounted at Tokyo Station; 2mm resistors are mounted at seven major stations; 1.6mm resistors are mounted at stations with high passenger volume; and 1mm electronic components are mounted at other transfer stations.A total of 230 stations are represented on the 17/18 Pro Max case (219 stations on the 17/18 Pro case).Coverage extends from “Ofuna Station” in the western area to “Funabashi Station” in the eastern area. Large ships are floating in Tokyo Bay. Railway station names are represented by three white silk-screened characters (e.g., TKY for Tokyo).
■Product Specifications
FLASH Tokyo Subway Map iPhone 17/18 Pro Case
Price: 17,600 yen (tax included)
Colors: Green, Black, White
Size: 153 mm × 75.5 mm × 15 mm (camera lens area)
Weight: 46 g
Electronic Components: LED (1), Resistors (192), Diodes (12), Capacitors (13)
MagSafe & Wireless Charging: Supported
FLASH Tokyo Metro Map iPhone 17/18 Pro Max Case
Price: 17,600 yen (tax included)
Colors: Green, Black, White
Dimensions: 166 mm × 81 mm × 15 mm (camera lens area)
Weight: 52 g
Electronic Components Used: LED (1), Resistors (203), Diodes (12), Capacitors (13)
MagSafe & Wireless Charging: Supported
■FLASH Kansai Railway Map iPhone Case
The FLASH Kansai Railway Map iPhone Case features a red LED mounted at Osaka Station that lights up without a battery.A 2mm red LED is mounted at Osaka Station; 2mm resistors are mounted at major stations; 1.6mm resistors are mounted at stations with high passenger volume; a 1.6mm capacitor is mounted at Esaka Station, where the PCB ART moeco factory is located; and 1mm electronic components are mounted at other transfer stations.A total of 213 stations are represented by electronic components on both the 17/18 Pro case and the 17/18 Pro Max case.The coverage extends from Kobe Station in the west to Kansai Airport Station in the south, from Kyoto Station in the north to Nara Station in the east. Large ships are floating in Osaka Bay. The names of the train stations are represented by three white silk-screened characters (e.g., OSK for Osaka).
■Product Specifications
FLASH Kansai Railway Map iPhone 17/18 Pro Case
Price: 17,600 yen (tax included)
Colors: Green, Black, White
Size: 153 mm × 75.5 mm × 15 mm (camera lens area)
Weight: 46 g
Electronic Components Used: LED (1), Resistors (186), Diodes (12), Capacitors (13)
MagSafe & Wireless Charging: Supported
FLASH Kansai Subway Map iPhone 17/18 Pro Max Case
Price: 17,600 yen (tax included)
Colors: Green, Black, White
Dimensions: 166 mm × 81 mm × 15 mm (camera lens area)
Weight: 52 g
Electronic Components Used: LED (1), Resistors (186), Diodes (12), Capacitors (13)
MagSafe & Wireless Charging: Compatible
■FLASH “The Great Wave off Kanagawa” PCB Art iPhone Case
The FLASH “The Great Wave off Kanagawa” PCB Art iPhone Case features a single red LED mounted below the title “Thirty-Six Views of Mount Fuji: The Great Wave off Kanagawa” that lights up without requiring a battery.
Only three colors are used: gold (gold plating), black (PCB ink), and white (PCB ink). The shades of the clouds and waves are expressed through the wiring patterns (gold plating) and the thickness of the ink lines.
■Product Specifications
FLASH “The Great Wave off Kanagawa” PCB Art iPhone 17/18 Pro Case
Price: 17,600 yen (tax included)
Colors: Green, Black, White
Size: 153 mm × 75.5 mm × 15 mm (camera lens area)
Weight: 46 g
Electronic Components Used: LED (1), Resistor (1), Diode (12), Capacitor (12)
MagSafe & Wireless Charging: Supported
FLASH “The Great Wave off Kanagawa” Circuit Board Art iPhone 17/18 Pro Max Case
Price: 17,600 yen (tax included)
Colors: Green, Black, White
Dimensions: 166 mm × 81 mm × 15 mm (camera lens area)
Weight: 52 g
Electronic Components Used: LED (1), Resistor (1), Diode (12), Capacitor (12)
MagSafe & Wireless Charging: Supported
■ List of Licensed Products
FLASH EVA01 Circuit Board Art iPhone 17/18 Pro Case / FLASH EVA01 Circuit Board Art iPhone 17/18 Pro Max Case / FLASH NERV Circuit Board Art iPhone 17/18 Pro Case / FLASH NERV Circuit Board Art iPhone 17/18 Pro Max Case / FLASH EVA13 Circuit Board Art iPhone 17/18 Pro Case / FLASH EVA13 Circuit Board Art iPhone 17/18 Pro Max Case / FLASH Gundam Circuit Board Art iPhone 17/18 Pro Case / FLASH Gundam Circuit Board Art iPhone 17/18 Pro Max Case / FLASH Char’s Custom Zaku PCB Art iPhone 17/18 Pro Case / FLASH Char’s Custom Zaku PCB Art iPhone 17/18 Pro Max Case / FLASH Gundam Last Shooting Ver. PCB Art iPhone 17/18 Pro Case / FLASH Gundam Last Shooting Ver. PCB Art iPhone 17/18 Pro Max Case / FLASH Unicorn Gundam Ver. TWC PCB Art iPhone 17/18 Pro Case / FLASH Unicorn Gundam Ver.TWC Circuit Board Art iPhone 17/18 Pro Max Case / FLASH RX-93ff Nu Gundam Circuit Board Art iPhone 17/18 Pro Case / FLASH RX-93ff Nu Gundam Circuit Board Art iPhone 17/18 Pro Max Case / FLASH MSN-04FF Z'Gok PCB Art iPhone 17/18 Pro Case / FLASH MSN-04FF Z'Gok PCB Art iPhone 17/18 Pro Max Case / FLASH Type-3 Kiryu PCB Art iPhone 17 Pro Case / FLASH Type-3 Kiryu PCB Art iPhone 17 Pro Max Case / FLASH X-WING PCB Art iPhone 17/18 Pro Case / FLASH X-WING PCB Art iPhone 17/18 Pro Max Case / FLASH DEATH STAR PCB Art iPhone 17/18 Pro Case / FLASH DEATH STAR PCB Art iPhone 17/18 Pro Max Case / FLASH M-FALCON PCB Art iPhone 17/18 Pro Case / FLASH M-FALCON Circuit Board Art iPhone 17/18 Pro Max Case / FLASH R2-D2 Circuit Board Art iPhone 17/18 Pro Case / FLASH R2-D2 Circuit Board Art iPhone 17/18 Pro Max Case / FLASH D-Vader Circuit Board Art iPhone 17/18 Pro Case / FLASH D-Vader Circuit Board Art iPhone 17/18 Pro Max Case
[Denshi Gihan Direct Sales E-Commerce Site]
Direct Sales Shop : https://www.moeco.jp.net/
Amazon.co.jp : https://www.amazon.co.jp/moeco
List of PCB ART moeco Retail Stores Nationwide: https://pcbartmoeco.jp/shop_list_jp/
[About Denshi Gihan Co., Ltd.]
We will celebrate our 50th anniversary in 2026. Our main business is the design and manufacture of printed circuit boards (PCBs), producing boards that require high reliability for social infrastructure facilities—such as airports, railways, buses, and hospitals—as well as industrial machinery. In 2014, we entered the PCB-themed merchandise business, offering products featuring intricate designs and elements of surprise.In July 2024, we launched factory tours and workshops.
<Awards (Merchandise Business Only)>
2015: Ministry of Economy, Trade and Industry (METI) “The Wonder 500” Certification
2015: Grand Prize, New Product Contest, Osaka Gift Show (Fall)
2017: Osaka Prefecture “Made in Osaka” Brand—Outstanding Product Award
2019: Grand Prize, New Product Contest, Tokyo Gift Show (Fall)
[Company Overview]
Name: Denshi Gihan Co., Ltd.
Representative Director: Hiroki Kitayama
Established: 1976 (Showa 51)
Headquarters and Factory: 62-8 Toyotsu-cho, Suita City, Osaka Prefecture
Business Activities: Design and manufacture of printed circuit boards; sales of electronic components; and miscellaneous PCB-related products
URL: http://www.denshi-gihan.co.jp/
PCB ART moeco Video (Japanese & English)
https://www.youtube.com/watch?v=OXEHW9eEW1Y
Manufacturing Process Video (Japanese Version)
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