News Briefs | October 5, 2026
After selecting the 15 main stories, Japan.co.jp reassessed the remaining candidates for freshness, significance, verification and duplication. Fourteen still merit publication as briefs.
Business & Economy
1. Japanese Companies in China Fall to Lowest Count in Survey
Teikoku Databank found 10,118 Japanese companies operating in mainland China as of June 2026, down 22.4% from 2024 and 29.7% from the 2012 peak. The shift does not amount to a complete corporate exit from China, but it shows Japanese companies diversifying supply chains and growth investment toward markets including India, Vietnam and Thailand.
Source: Teikoku Databank
2. Fuji Electric Turns Vending-Machine Cooling Know-How Toward AI Data Centers
Fuji Electric is adapting refrigeration technology developed around vending machines for the data-center market. Its 2026 reporting says its ejector cooling unit can deliver energy savings of up to 85% and is being rolled out as AI servers drive sharply higher cooling demand. It is a notable example of legacy Japanese engineering finding a new infrastructure market.
Source: Fuji Electric
3. Tokyo Core Inflation Accelerates to 2.7%
Tokyo’s core consumer inflation rose 2.7% year on year in September, up from 1.8% in August. Some of the increase reflected the end of government support measures, but food and service prices also remained under pressure. The Tokyo index is watched as an early signal for nationwide inflation and Bank of Japan policy.
Source: Reuters
Science & Technology
4. Crystal Polarity Reverses Light-Induced Current
Science Tokyo researchers demonstrated that molecular arrangement in two-dimensional organic-inorganic hybrid perovskites can control crystal polarity and reverse the direction of circular photogalvanic current. By separating bulk response from surface effects, the work provides a new route toward materials for optoelectronics and spintronics.
Source: Institute of Science Tokyo
5. Human Stem-Cell Pituitary Tissue Restores Hormone Function in a Primate
Nagoya University researchers report the first successful transplant of human stem-cell-derived pituitary tissue into a primate lacking pituitary function, restoring cortisol-related hormonal signaling. The step beyond rodent studies is significant for regenerative medicine, although long-term safety and clinical applicability remain to be established.
Source: Nagoya University
6. Tracing Platform Finds Delays Across Autonomous-Driving Software
A Saitama University-led team developed a tracing platform that reconstructs processing paths across AUTOSAR Adaptive Platform, ROS 2 and Autoware. The tool can identify where latency builds from sensor input to control output, an increasingly important engineering problem as vehicles become more software-defined.
Source: Saitama University / IEEE
Communities
7. Okuma Gets Its First New Supermarket Since the Fukushima Nuclear Disaster
A new supermarket opened in Okuma, Fukushima Prefecture, on October 2—the first new store in the town since the 2011 Fukushima Daiichi accident. Operated by Iwaki-based Maruto, the roughly 2,000-square-meter store also houses a drugstore and ¥100 shop, giving returning residents and reconstruction workers a new everyday commercial base.
Source: Jiji / The Japan Times
8. Tokai Kisen Receives Ship-Suspension Order After Safety Violations
The Kanto District Transport Bureau ordered Tokai Kisen to suspend use of specified vessels after inspections found violations of the Marine Transportation Act and failures to follow the company’s safety-management rules. News reports describe it as the first ship-use suspension order under the law, making the case significant for passenger-shipping oversight and corporate safety culture.
Source: Ministry of Land, Infrastructure, Transport and Tourism
9. Influenza Reaches Outbreak Levels in All 47 Prefectures
Health ministry data released October 2 showed an average 7.17 influenza patients per monitored medical institution for the week of September 21–27. Every prefecture was above the outbreak threshold of 1.0, while Okinawa reached 42.50, above the warning level. The early nationwide spread bears watching for its effect on schools and health services.
Sports
10. South Korea Beat Japan 1-0 in Asian Games Men’s Football Final
South Korea defeated Japan 1-0 at Toyota Stadium, with Eom Ji-sung scoring in the 61st minute. Japan controlled much of the match but could not equalize and finished with silver for a third consecutive Asian Games. South Korea secured a fourth straight title. This is a result update to Japan.co.jp’s earlier final preview rather than a duplicate of it.
Source: Asian Football Confederation
11. Japan Wins Gold in Padel’s Asian Games Debut
Japan’s Kae Tokumoto and Saki Tsukamoto won gold as padel made its Asian Games debut. The result gives the host nation an early place in the continental history of a racket sport that has expanded rapidly worldwide and could help raise awareness of padel inside Japan.
Source: Reuters
Culture
12. Language Survey Shows Wider Use of ‘Ra-Dropping’ Japanese
Japan’s Agency for Cultural Affairs reported that forms such as “koremasu ka,” “mireta” and “dereru,” which omit the traditional “ra” in potential verb forms, are now used by more than half of respondents in several cases, with higher use among younger people. At the same time, more than 80% said handwriting habits should be valued, showing change and continuity in language culture.
Source: Agency for Cultural Affairs
13. ‘MITANI’ Offers a Different Global Portrait of Japanese Sushi
The documentary “MITANI — The Mariage of Sushi” screened in the Culinary Zinema section of the San Sebastian International Film Festival. Following the global influence of “Jiro Dreams of Sushi,” the film offers another portrait of Japanese sushi craft and raises a broader question about how Japanese culinary culture is framed for international audiences.
Source: The Japan Times
14. Gojin Ishihara Exhibition Reopens the Strange Futures of 1970s Japan
An exhibition devoted to illustrator Gojin Ishihara opened October 3 at Yayoi Museum in Tokyo. His highly detailed magazine images of monsters, strange phenomena, space, robots and apocalyptic futures shaped the visual imagination of many young readers around 1970. The exhibition runs through December 20.
Source: Yayoi Museum