Early Detection of Kidney Disease by Checking Cat "Pee"! Start recruiting monitors from cat lovers all over Japan for the launch of the project.
林技研株式会社
Hayashi Giken Co. (Location: Shinjuku-ku, Tokyo / President: Motohiro Hayashi), which has devoted its life to research into kidney disease in cats, will launch the "Early Detection of Kidney Disease by Pee Check Project" on August 19, 2025, and begin accepting applications from cat lovers nationwide to participate in the monitoring program.
On the premise that monitoring will begin within the year, a free health consultation session by the researchers themselves and the first unveiling of the new product "JIN Sheet (tentative name)" are scheduled to take place at "Wannyan Smile FES 2025" to be held in Yokohama City on November 16, 2025 (Sunday).
Mochimochi Brothers Yomogi
Current Situation and Challenges of Kidney Disease in Cats
It is believed that among the more than 9.15 million cats in Japan, the number of cats suffering from feline kidney disease is actually much higher than recognized.
The reasons for this are,
The kidneys are difficult to detect abnormalities in blood tests unless kidney function declines considerably.
It is difficult to judge the decline in kidney function by daily activities, and the disease is often severe when it is noticed.
The owner's "my cat is fine" mentality, or so-called "normalcy bias," comes into play.
Therefore, it is not uncommon for a cat to go limp before it is too late.
As the Amazon booth at the INTERPET 2024 Asia Pacific also had the theme of "early detection" and "early care," measures against kidney disease in cats include not only conventional therapeutic diets and supplements, but also the latest natural remedy, such as "JIN Power 100," which uses dogtooth vines. The existence of supplements and therapies alone is not enough.
In order to live with your cat for a long time, "early detection test goods" that allow you to check the condition of kidney function on a daily basis are indispensable for extending the healthy life of your cat.
Research that began with overcoming kidney disease
Motohiro Hayashi, a researcher and representative of Hayashi Giken, started his research after he himself suffered from kidney disease and used the endangered plant "dogtooth violet" to overcome the disease.
He carefully conducted clinical trials with the cooperation of doctors as well as veterinarians to develop the product, and has conducted more than 200 clinical trials and accumulated results of more than 1,500 cases of use.
The active ingredient "YN-1" contained in dogtooth violet has the potential to promote blood flow and support immune balance, and has been shown to be applicable to kidney care in cats and dogs.
The results were published in the July 2025 issue of Medical Science Digest and have attracted attention from specialists.
Early detection of kidney disease through "pee-pee check
The "pee-pee check" project for early detection of kidney disease will utilize "JIN Sheet (tentative name)," a new product under development that is easier and cheaper than a blood test to check the condition of the kidneys.
The sheet changes color according to the amount of amino acids in urine, making it possible to detect abnormalities in kidney health at an early stage.
Outline of the monitoring application
Start of recruitment: August 19, 2025
Implementation period: Within 2025 (scheduled to start by the end of the year)
Target: Cat owners (regardless of age, breed, or presence of kidney disease) and veterinary hospitals nationwide
Method ：Send JIN sheet→measurement→feedback
Privilege ：Samples of test samples will be provided (planned) and JIN Power 100 will be sold at a special price.
Please contact us to apply to be a monitor.
The monitor can be an "individual (one target cat)" or a "veterinary hospital". Please register on the following line.
Renal care supplement "JIN Power 100" also attracts attention
JIN Power 100", a renal care supplement for dogs and cats based on Hayashi's research results, has been chosen by veterinary hospitals and many owners.
Currently available on Amazon and Rakuten Market, it is used as part of daily kidney care.
[Some information will be available ahead of time on November 16, 2025.
At "Wannyan Smile FES 2025" (free of charge) to be held in Yokohama on Sunday, November 16, 2025, Hayashi and veterinarian Dr. Katayama of "Bloom Animal Hospital" in his hometown of Yokohama will provide free health consultations.
A part of the development of "JIN Sheet (tentative name)" will be specially disclosed on the day, but since a patent application is pending, the full details will not be disclosed and will include information known only to the participants.
In addition, there will be a trial run of "JIN Power 100" and "JIN Sheet (tentative name)," a raffle with prizes for posting on SNS, Kaya Kawasaki* and Mochimama (85,000 Instagram followers) will be there to support the event, and the organizers will also host a pet talk show featuring veterinarians, celebrities, and entertainers. The organizers also plan to have a variety of events and exhibits, including pet talk shows by veterinarians, entertainers, and celebrities.
The character for "saki" is officially "Tatsusaki.
Key Points for Cat Kidney Disease Care
Early detection: Observe the color, volume, and odor of urine on a daily basis.
Regular checkups: Blood tests should be performed once or twice a year.
Nutritional support ： Diet and supplements to reduce the burden on the kidneys
Noteworthy Ingredient ："YN-1" contained in dogtooth violet may be useful for promoting blood flow and supporting immune balance.
Practical example: Use of "JIN Power 100" and other kidney care supplements of natural origin adopted by veterinarians.
Reason → To avoid the increased burden on cats, which are often used in combination with other medications, etc.
Researcher's comment
I have experienced kidney disease myself, and through that experience I realized the power of dogtooth violet. Kidney disease in cats and dogs is another disease that often progresses before owners are aware of it. With this project, I hope to save as many lives as possible by spreading the word about a system that is easier, cheaper, and clearer than a blood test to determine kidney status."
[Event Summary
Name ：Wannyan Smile FES 2025
Date ： November 16, 2025 (Sun.) 10:00-16:00
Venue ：Yokohama Sangmo Hall Marineria
Industrial Trade Center Bldg. 1F, 2 Yamashita-cho, Naka-ku, Yokohama, Kanagawa 231-0023, Japan
Admission: Free
Company Profile】 Company Name ： Hayashi Giken Co.
Company Name ： Hayashi Giken Co.
Location: Meiji-dori Building 606, 2-3-21 Kabuki-cho, Shinjuku-ku, Tokyo
Business Description: Development and sales of pet supplements and health-related products
Operation of "Ulyseed," a beauty and health chiropractic salon
Building construction, construction management, and consulting services
URL : https://ulysses.tokyo/
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