Has the design registration been approved? | The answer depends on the device and date [OK Prostate Chip]

This page is based on entries from "ok-lab's diary" (https://ok-lab.hatenablog.com/), the Japanese development diary written by Mr. Okada, founder of OK Lab, a small company in Japan (Okada Comfortable Life Laboratory). Only the entries about "design registration applications and decisions" are summarized here, in order of publication. Past prices and sizes are as written at the time. Current prices come from the official product list (retrieved September 4, 2026). Quotations are translated from Japanese.

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Note: This page is a personal reading log by someone with no connection to the maker or the seller. It reflects the source entries as of their publication dates and makes no guarantee of accuracy or safety. The product is not a medical device; talk to a doctor about any health decision. Check the official site for current information. This page contains advertising.

In short

• The diary records design applications and registrations for several different devices, each with its own history.
• Mr. Okada changed production plans after filings and decisions, and sought a patent when he wanted broader protection.
• The latest relevant entry, published in July 2026, mentions a possible design application without confirming submission.

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About this product

The OK Prostate Chip is a small device that is placed in the urethra (the urine passage) so that it acts on the prostate; the maker sells it in several shapes, sizes and materials. It is made and sold by OK Lab (Okada Comfortable Life Laboratory), a small company in Japan, through its own online store, and prices are in Japanese yen (JPY). The maker's development diary, "ok-lab's diary", is written in Japanese. This page is an English summary of it, and every quotation is translated. OK Lab ships internationally, so readers outside Japan can order (see "Buying from outside Japan" below). Product names on this page are plain-English descriptions. The official Japanese product name is shown once in the product table so you can find the same item in the store.

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Before you read: key terms

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What happens: design registration

The material does not describe what the base device, the OK Prostate Chip, is. The filings concern an external pelvic support, a spiral bowel aid, a penis restraint, and a gourd-shaped urethral device. Mr. Okada describes design registration as protection for product shape, with applications and examination appearing at different stages of development. These devices relate to different locations, including the crotch, rectum and urethra.

A pelvic support held design registration before its proposed new role

In an entry published in September 2018, Mr. Okada reported that the pelvic floor support already held design registration 1531237. The registered description placed it at the crotch, where its stated purpose was to support the pelvic floor. He said its original development goal was pressure directed specifically at the pelvic floor muscles, rather than holding an internal anal chip.

By that entry, he was considering a different role for the same support alongside an anal chip under development. Mr. Okada also claimed it could provide a slight inward push on the chip, beyond simply holding it in place. No matching product can be confirmed on the current list.

(Source: ok-lab's diary, published September 2018)
https://ok-lab.hatenablog.com/entry/20180915/1536986152

The October design application separated bowel aids from prostate massagers

In an entry published in October 2018, Mr. Okada reproduced a bowel-aid design application submitted on October 3, 2018. The filing carried reference DA180003 and application number 2018-21771, identifying the application discussed. Its description presented a rectal bowel aid, with a spiral section intended to hold stool for removal.

Mr. Okada said designs 2 and 3 were filed as bowel aids, while design 1 was filed as a prostate massager. The entry records the application stage; it does not report a registration decision for that filing.

(Source: ok-lab's diary, published October 2018)
https://ok-lab.hatenablog.com/entry/20181005/1538740535

A fast design examination preceded the spiral bowel aid's release

In an entry published in February 2019, Mr. Okada shared a report from his patent attorney (the professional preparing his applications). The attorney said design examination (review of the application) took just under 4 months, compared with the 9–11 months usually needed then. Mr. Okada said he responded by making a spiral device solely as a bowel aid, rather than a product intended for the prostate.

He described a partial design application (a filing focused on part of a product), claiming protection covered rectal devices with a spiral section. He said custom orders could begin that day and planned a listing in an online auction site's health-equipment category. No matching product can be confirmed on the current list.

(Source: ok-lab's diary, published February 2019)
https://ok-lab.hatenablog.com/entry/2019/02/02/153358

The cross-shaped restraint's design registration was still being considered

In an entry published in November 2022, Mr. Okada described a cross-shaped restraint developed through discussions with an illustrator. He expected demand might exceed what hand production could supply, so he considered manufacturing it in quantity using molds.

He also wrote that he needed to ask his patent attorney about design registration; the entry did not announce a completed filing. No matching product can be confirmed on the current list.

(Source: ok-lab's diary, published November 2022)
https://ok-lab.hatenablog.com/entry/2022/11/19/122516

The gourd-shaped device's launch depended on completing its design application

In an entry published in November 2023, Mr. Okada described preparations to protect the gourd-shaped urethral device's name and appearance. He said the application to register its name was complete, while draft design drawings had arrived from the drawing specialist the previous day.

Mr. Okada expected to submit the design application during the following week and planned to start sales once all applications were finished. His stated launch condition was completion of the filings; this entry did not announce a granted design registration. No matching product can be confirmed on the current list.

(Source: ok-lab's diary, published November 2023)
https://ok-lab.hatenablog.com/entry/2023/11/18/122841

The hybrid chipless device's design registration remained an idea in July

In an entry published in July 2026, Mr. Okada expressed interest in seeking design registration for a horned spiral hybrid chipless device. He wrote that its industrial design seemed more refined than the earlier chipless model he described.

Mr. Okada said the hybrid name reflected its combination of sections made from different materials or designed for different functions. He distinguished it from a separate cable-and-wire retaining device after a staff member raised concern about confusing names. The diary does not record whether the proposed design application was submitted. No matching product can be confirmed on the current list.

(Source: ok-lab's diary, published July 2026)
https://ok-lab.hatenablog.com/entry/2026/07/11/122904

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The maker's answer to design registration

Mr. Okada's responses included pursuing a patent, pausing production after filing, and restarting production with a weekly limit.

Mr. Okada preferred a patent application over narrow design registration

In an entry published in December 2022, Mr. Okada explained why he sought a patent for a cross-and-wedge penis restraint. He considered design registration too narrowly tied to product shape and worried that cheaper competing versions could leave his company unable to compete. His attorney prepared claims (the wording defining the protection sought) that Mr. Okada believed could also cover future improvements.

According to Mr. Okada, the attorney expected the application to succeed if no earlier example emerged. Mr. Okada explicitly stated that the application had been submitted, but a patent had not yet been obtained. No matching product can be confirmed on the current list.

(Source: ok-lab's diary, published December 2022)
https://ok-lab.hatenablog.com/entry/2022/12/31/123019

Completing the gourd-shaped device's design application did not prevent a pause

In an entry published in November 2023, Mr. Okada confirmed that he had submitted the gourd-shaped urethral device's design application. He said a new idea for expanding the urethra occurred to him on the filing day and drew his attention to another development project.

Although he had intended to begin sales promptly, he now planned to pause work on the gourd-shaped device. He described this as a temporary break and said he expected to return to it after exploring the other idea. For customers whose orders were already accepted, he promised to make and send their devices soon. The diary does not record whether those orders were delivered.

(Source: ok-lab's diary, published November 2023)
https://ok-lab.hatenablog.com/entry/2023/11/25/122934

Design registration arrived as limited gourd-shaped device production resumed

In an entry published in March 2024, Mr. Okada reported restarting work on the gourd-shaped urethral device after a fresh request. He said orders had been suspended because repeated attempts produced differences in size and shape, preventing him from making identical pieces. A certificate arrived during this work, confirming registration in February 2024 following the November 2023 application.

He described the 3-month decision as faster than the 6–7 months he usually expected for design examination. Mr. Okada planned production of about 2 devices per week. He said requests beyond that limit would need to wait.

(Source: ok-lab's diary, published March 2024)
https://ok-lab.hatenablog.com/entry/2024/03/30/122958

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How design registration changed over time

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OK Prostate Chip products related to design registration

No current product is directly tied to this topic.

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Common worries about design registration

The customer purchase request in this material concerned a registered pelvic support that Mr. Okada had previously declined to sell.

"Could customers buy the pelvic support after design registration?"

In an entry published in September 2018, Mr. Okada recalled a trial customer asking to buy the registered pelvic support. The customer wanted to keep using it, but Mr. Okada had refused the paid request because production required considerable force.

He said he could not make it himself, while teaching the process to staff had also seemed too difficult. His new plan was to train staff and begin production for formal sale as a support for anal chips. The diary does not record whether the original customer's purchase was completed.

(Source: ok-lab's diary, published September 2018)
https://ok-lab.hatenablog.com/entry/20180915/1536986152

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Buying from outside Japan

OK Lab ships internationally to countries covered by Japan Post's EMS courier service. Overseas orders are paid in advance by PayPal. Each order carries a ¥400 (about $3 at ¥156 = $1, rate as of 2026-09-04) handling fee, and EMS shipping is charged on top. These terms come from OK Lab's official sales-terms page (written here as plain text, not a link: ok-lab.net/docs/law), checked on September 7, 2026; confirm them on the official store before you order, because they can change.

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Summary of this article

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Source: ok-lab's diary (Okada Comfortable Life Laboratory). The original entries are in Japanese; quotations on this page are translated. Photos and videos are on the original entries.