If you want to create products that are water-resistant, leave it to Marumaru Waterproof Services! We handle design, development, and improvements—everything is taken care of! Waterproof, water-repellent, dustproof, IPX.
Our company provides waterproof-related services such as establishing waterproofing for original products, adding waterproofing to existing products, and waterproofing non-waterproof products. By utilizing our waterproofing technology, we can accommodate partial development and various process responses tailored to our customers' needs. We also support development that includes aspects beyond waterproofing. For original products, we offer design and technical proposals to establish waterproofing according to customer requests, achieving optimal waterproof performance. For existing products, we enhance waterproofing by applying waterproof treatments to the current products. Additionally, for non-waterproof products, we can expand possibilities for new applications and market development by applying waterproof treatments. Regarding estimates, we will respond carefully with content tailored to customer requests. Please feel free to contact us.
Inquire About This Product
basic information
Our company provides the following basic information related to waterproofing. 【About Estimates】 We will carefully prepare estimates tailored to your requests. Please feel free to contact us after a meeting. 【Main Services】 - Establishing waterproofing for original products - Adding waterproofing to existing products - Waterproofing non-waterproof products We are also open to partial development and addressing various processes. Regarding development, we can accommodate aspects beyond waterproofing. 【Contact Information】 - HP Inquiry: https://kohgami.co.jp/contact-us/ - Twitter: https://twitter.com/kogagami17 【Services Offered】 - Proposal of waterproof standards (such as in-house standards) - Patents (intellectual property: research, applications, etc.) - Waterproof structural design and consideration - Creation of 3D data and drawings - Design FMEA - Drawing checks (data verification) - Supplier proposals - Manufacturing FMEA - Waterproof evaluation (including external) - Air leak startup By providing these services, our company aims to offer waterproof products that meet our customers' needs.
Price range
P3
Delivery Time
※It will be a support for design consideration.
Applications/Examples of results
Target Smartphones, tablets Controllers Wearable devices (watches, smart glasses, etc.) Evaluation equipment Outdoor equipment
Detailed information
catalog（2）
Download All Catalogs
Company information
We are a technical consulting partner that aims to rebuild "design quality" and "compliance" in the manufacturing industry from the upstream. Kamikami Corporation prioritizes three specialized areas: waterproofing, thermal and mechanical design, compliance with quality management standards, and green procurement and chemical substance regulation compliance. Additionally, we provide AI utilization support services for the manufacturing industry. Our representative, Takashi Suzuki, is a mechanical design expert who has worked on world-class ultra-thin smartphone waterproof designs at Fujitsu. He has supported over 100 manufacturing companies in improving design quality, mass production yield, regulatory compliance, and on-site AI implementation. The year 2026 saw significant changes in regulations and systems surrounding the manufacturing industry, including the addition of chemical substance regulations (with the number of SVHC candidate substances increasing to 253 as of February 2026) and the revision of AI-related guidelines (AI business operator guidelines version 1.2 in March 2026). Our company continuously keeps up with these developments and provides support based on the latest information to ensure that our clients do not experience "unintentional compliance gaps." "Our stance is to fundamentally improve design quality and mass production yield." We invite you to start with a free consultation (60 minutes) and feel free to reach out to us. Updated June 2026.
