TOMA-TOP is a retractable rooftop designed for the flybridge (upper deck control area) of high-end pleasure boats, developed by Maruwa Seisakusho Co., Ltd. It features a patented unique mechanism.

Why is Maruwa Seisakusho re-entering the American market?

To realize the dream of the previous generation to bring their products to the world. Leveraging past experiences and success in Japan, the company aims to fully expand into the largest market, the United States.

Which Japanese manufacturers have adopted TOMA-TOP?

As of 2026, TOMA-TOP is officially adopted as an option by major Japanese marine manufacturers including Yanmar, Yamaha, and Toyota cruisers.

Father's Dream to the World: From Supplier to Manufacturer, Changing the Norms of the American Market with TOMA-TOP

Published Apr 1, 2026 7:00 PM ・ Updated Jun 13, 2026 11:58 PM ・ 5 min read ・ Source: PR TIMES

Marubishi Manufacturing Co., Ltd. aims to transform from a supplier to a manufacturer and expand its proprietary product, "TOMA-TOP," globally. The company is re-challenging the American market with its unique retractable rooftop for luxury pleasure boats, emphasizing its distinctiveness and market success.

Our company endorses April Dream, which aims to make April 1st a day to share dreams. This press release represents the dream of "Marubishi Manufacturing Co., Ltd."

■ The Challenge of "Becoming a Manufacturer," My Father's Dream Marubishi Manufacturing Co., Ltd. (Headquarters: Kasugai City, Aichi Prefecture, Representative Director: Seizo Tomatsu) has until now operated as a supplier to major manufacturers.

Amidst this, the previous generation had a dream.

That dream was: **"Not to end as a supplier, but to become a manufacturer that can determine its own value."** And, "To deliver our own products to the world."

My father is still alive, and his dream is not yet dead.

I will inherit that dream as my own.

■ The Challenge of TOMA-TOP Since 2000, Marubishi Manufacturing has been developing and selling its own brand product, "Toma Awning" (overseas name: TOMA-TOP).

This product is a rooftop installed on luxury pleasure boats equipped with a flybridge (upper helm station).

Its biggest feature is a **unique mechanism where the windshield opens and closes**, for which a patent has been obtained.

The name "TOMA" was chosen because the family name "TOMATSU" is difficult to pronounce overseas, indicating that the product was envisioned for global expansion from the outset.

■ The "Third Option" That Didn't Exist in the World Until now, the choices for flybridge roofs were mainly:

Folding simple tents "Bimini tops" Enclosures made of vinyl sheets "Enclosures"

These two were mainstream, not only in Japan but globally.

TOMA-TOP was developed as a new, unprecedented option that combines:

Streamlined, sporty design Structural strength Openable windshield

As a result, it has received a great response in Japan, and as of 2026, it is adopted as an official option for cruisers from major domestic marine manufacturers such as Yanmar, Yamaha, and Toyota.

■ Second Challenge to the American Market Once, when my father was in his 50s, he traveled overseas to spread this product worldwide.

However, at that time, he could not establish a local sales and installation system, and despite the positive response, it did not become established in the market.

After that, we focused on the domestic market, but the time has come to challenge the world again.

2022 Newport Beach Boat Show 2023 Fort Lauderdale Boat Show

Through these, the market

FACT BOX

Source: PR TIMES
Category: New Product
Products / services: TOMA-TOP

Father's Dream to the World: From Supplier to Manufacturer, Changing the Norms of the American Market with TOMA-TOP

⚡ Key Points

■ The Challenge of "Becoming a Manufacturer," My Father's Dream Marubishi Manufacturing Co., Ltd. (Headquarters: Kasugai City, Aichi Prefecture, Representative Director: Seizo Tomatsu) has until now operated as a supplier to major manufacturers.

■ The Challenge of TOMA-TOP Since 2000, Marubishi Manufacturing has been developing and selling its own brand product, "Toma Awning" (overseas name: TOMA-TOP).

■ The "Third Option" That Didn't Exist in the World Until now, the choices for flybridge roofs were mainly:

■ Second Challenge to the American Market Once, when my father was in his 50s, he traveled overseas to spread this product worldwide.

FACT BOX

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