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D-GATE · SUZUKA, JAPAN
We research Japanese vehicle and parts information that can be difficult to verify from outside Japan.
D-GATE mainly supports overseas automotive businesses with:
product manuals, installation instructions and technical illustrations,
research on Japanese vehicle part numbers and specifications,
and verification of Japanese vehicle and parts data for e-commerce, catalogs and product databases.
You can contact D-GATE when, for example:
you cannot confirm the correct part number,
you need to check differences by model year, grade or specification,
your product is ready but your team does not have time to produce the manual,
or Japanese vehicle information is delaying your product listings.
We check information using sources available in Japan.
We organize not only what can be confirmed, but also what information is missing and what should be checked further before a decision is made.
Contact D-GATEView our servicesD-GATE provides three main services.
We produce product documentation, research Japanese vehicle parts, and check Japanese vehicle and parts data used in catalogs, e-commerce and product databases.
If you are not sure which service fits your request, just tell us what you need help with.
We will review it and explain the appropriate next step.
Product Manuals & Technical Illustrations
Your product is ready, but your team does not have time to create the manual. D-GATE can support that documentation work.
D-GATE is particularly experienced with:
automotive accessories,
aftermarket parts,
and in-vehicle products.
We can produce:
user manuals,
installation instructions,
assembly instructions,
manual revisions,
technical illustrations,
photo annotations,
and page layouts.
We can also discuss documentation for other physical products, including:
OEM and private-label products,
self-branded products,
products from small manufacturers,
imported products,
outdoor products,
household products,
assembly products,
and accessories.
Projects from US$350
View Manuals & IllustrationsD-GATE Japan Parts Research
When you cannot confirm the correct part, we research it using Japanese sources.
Japanese vehicle parts can be difficult to identify when:
more than one part number is possible,
an old part number has been superseded,
the part changes by model year, grade or specification,
or a used listing does not contain enough information to confirm whether it is the part you need.
D-GATE researches the available information in Japan and organizes:
what can be confirmed,
possible candidates,
what still cannot be confirmed,
and what should be checked before purchase.
If you would like help with purchasing or shipping, you can also ask us about proxy purchasing and international shipping.
Availability and pricing are confirmed separately.
Standard from US$125
Advanced from US$195
Special: fixed quote
View Parts ResearchJapanese Automotive Product Data Research & Verification
Do you still have Japanese vehicle information you cannot confirm for your product listings?
D-GATE checks Japanese vehicle and parts information for businesses such as:
parts companies,
e-commerce operators,
importers,
wholesalers,
and automotive product-data providers.
We can review information such as:
model codes,
model years,
facelifts,
grades,
part numbers,
left / right and front / rear positions,
and fitment conditions.
The results are organized so your team can see:
what is supported by the sources,
what may need correction,
where sources conflict,
what conditions are missing,
and what could not be confirmed.
Excel and CSV files can be returned in an agreed format that fits your existing workflow.
Small specialist research: typically US$250
View Product DataFor businesses that spend time and effort checking Japanese vehicle and product information.
D-GATE mainly works with businesses such as:
automotive accessory manufacturers,
aftermarket parts manufacturers,
repair workshops,
JDM and Japanese-vehicle specialist shops,
restoration shops,
importers,
parts sellers,
automotive e-commerce businesses,
wholesalers,
automotive product-data companies,
and documentation companies.
For documentation work, we can also support businesses selling:
OEM products,
private-label products,
self-branded products,
and non-automotive physical products.
We check not only the vehicle name or part number, but also the conditions under which the information applies.
Japanese vehicle and parts information can change depending on:
model code,
model year,
pre-facelift or post-facelift version,
grade,
engine,
drivetrain,
production period,
and left / right or front / rear position.
For that reason, D-GATE does not look only at what is written in one record.
We also check which vehicle, specification or condition the information applies to.
If the available sources are not enough to support a conclusion, we do not fill the gap by guessing.
We separate:
confirmed information,
missing conditions,
and items that require further checking.
D-GATE Representative | Ryota Suematsu
From hands-on vehicle work to product development, brand launches and sales.
D-GATE's services are based on practical experience across several areas of the automotive industry.
D-GATE applies that experience to:
product manuals and technical illustrations,
Japanese vehicle parts research,
and Japanese automotive product-data verification.
Ryota Suematsu began with vehicle service work at a dealership.
He later worked as the main mechanic at an HKS Performance Dealer and spent approximately seven years building tuned cars and race cars.
He then worked on aftermarket product planning and design for K-SPEC's GARAX brand, mainly for minivan products.
His work included:
product planning and design,
part-number assignment,
vehicle fitment checks,
pre-production checks,
factory coordination,
and installation instructions.
During the same period, he was also involved in the launch of the VALINO tire brand.
He later launched his own automotive seat-cover brand and handled work including:
product planning,
e-commerce operation,
product pages,
image production and editing,
video editing,
order management,
and sales.
His experience is not limited to working on vehicles or developing products.
He has worked with actual vehicles, parts, product information, documentation and sales, and now applies that experience to D-GATE's services.
Read Ryota's backgroundStart by telling us what you need to confirm or produce.
Confirm the scope
We review the request and agree the work, price, required information and delivery target.
Receive the agreed output
Depending on the service, you receive the agreed manual, research report or structured data file.
Frequently Asked Questions
Can I contact D-GATE if I am not sure which service I need?
Yes. Tell us what you are trying to confirm, research, or create.
We will review the request and explain whether D-GATE can handle it and which service or way to proceed is appropriate.
What should I send with my inquiry?
You do not need to prepare a formal request document.
Send any materials you already have that may help us understand the issue, such as PDFs, Excel or CSV files, product pages, photos, part numbers, or vehicle information.
If you are not sure whether the materials are sufficient, you can send what you currently have.
What happens if some information cannot be confirmed?
D-GATE does not guess or present unsupported information as confirmed.
We organize what could be confirmed, any conflicts between sources, missing conditions, items that could not be confirmed, and any additional checks that may be useful.
How are the scope and price determined?
We review the request and available materials, then provide a quotation covering the scope of work, deliverables, and price.
If work outside the agreed scope becomes necessary, we will explain the additional work and charges and provide a separate quotation before carrying it out.