2024年底为止有87万大陆人在日本，2022年时是76万，预计超1mm到2026。移民日本最多的是大陆。

来源: 于 2025-05-17 20:42:14 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

没落的日本，没落的德国，没落的美国，这怎么解释？

再看看ChatGPT 和 ds 上写的：

Japan continues to lead or outperform China in several high-tech, precision-based, and specialty product sectors. While China has rapidly advanced in many areas, Japan maintains an edge in products that require extreme precision, reliability, and long-term R&D investment.

 

Here are key product categories where Japanese technology is still considered more advanced than China’s:

 

 

 

 

1.  

Semiconductor Equipment & Materials

 

 

  • Leaders: Tokyo Electron, Nikon, Canon, SCREEN Holdings, Shin-Etsu, JSR, Sumco
  • Why Japan leads: Japan dominates in the high-precision equipment and specialty materials (like photoresists, wafers, and polishing chemicals) essential for chip manufacturing.
  • Example: Over 80% of global photoresist supply comes from Japan.

 

 

 

 

 

2.  

Precision Machinery & Industrial Robots

 

 

  • Leaders: Fanuc, Yaskawa, Mitsubishi Electric, Kawasaki Robotics
  • Why Japan leads: Japanese industrial robots are known for unmatched reliability, precision, and long service life.
  • Example: Japan is still a top exporter of industrial robots, especially to high-precision manufacturing sectors like automotive and electronics.

 

 

 

 

 

3.  

High-end Optics & Imaging Technology

 

 

  • Leaders: Nikon, Canon, Olympus, Fujifilm
  • Why Japan leads: Decades of R&D in optics and micro-imaging allow Japanese companies to make world-class camera lenses, medical endoscopes, and microscopes.
  • Example: Olympus dominates the global market for gastrointestinal endoscopes with a 70%+ market share.

 

 

 

 

 

4.  

Automotive Components & Hybrid Technology

 

 

  • Leaders: Toyota, Denso, Aisin, Hitachi Astemo
  • Why Japan leads: Japan excels in hybrid vehicle systems, powertrains, and ultra-reliable automotive parts.
  • Example: Toyota’s hybrid systems are still more efficient and time-tested than most Chinese equivalents.

 

 

 

 

 

5.  

Material Science & Specialty Chemicals

 

 

  • Leaders: Toray, Asahi Kasei, Mitsubishi Chemical, Teijin
  • Why Japan leads: Japan supplies cutting-edge carbon fiber, high-performance plastics, and specialty membranes.
  • Example: Toray is the global leader in carbon fiber, used in aerospace and electric vehicles.

 

 

 

 

 

6.  

Watchmaking & Micro-mechanics

 

 

  • Leaders: Seiko, Citizen, Casio
  • Why Japan leads: Japan still leads in high-precision timepieces, especially in quartz and kinetic watch innovation.

 

 

 

 

 

7.  

Healthcare & Diagnostic Devices

 

 

  • Leaders: Fujifilm, Shimadzu, Hitachi, Canon Medical
  • Why Japan leads: High-end medical imaging (MRI, CT, endoscopy) technology from Japan is globally respected.
  • Example: Fujifilm is a leader in digital radiography and diagnostics.

 

 

 

 

 

In Summary:

 

 

While China is catching up and even surpassing Japan in consumer electronics, EVs, and mass production scale, Japan still excels in:

 

  • Niche, high-precision industries
  • Long-cycle R&D-based innovation
  • Trusted quality in B2B and industrial components

数控机床（CNC machine tools），日本依然在多个关键领域领先于中国，尤其是在高端数控系统、超精密加工、核心零部件制造等方面。下面是详细对比和分析：

 

 

 

 

日本数控机床的优势

 

 

 

1. 

高精度与稳定性

 

 

  • 日本数控机床如 OKUMA（大隈）、DMG MORI（原森精机）、Yamazaki Mazak（山崎马扎克） 以超高的加工精度、极高的设备稳定性 和 长寿命 著称。
  • 精度可达到微米级，适用于航空航天、精密模具、医疗器械等领域。

 

 

 

2. 

先进的控制系统

 

 

  • 日本企业如 FANUC（发那科）和三菱电机 提供全球领先的数控系统，与机床高度集成。
  • FANUC 控制系统稳定、反应速度快，广泛应用于欧美高端设备，也是世界CNC控制器的标准之一。

 

 

 

3. 

核心零部件自给率高

 

 

  • 如丝杠、导轨、电主轴、伺服驱动器、精密刀库等，几乎都为自主制造，保证整机协同与质量。

 

 

 

4. 

行业品牌影响力强

 

 

  • 如 Mazak 和 OKUMA 拥有极高的国际市场份额，是世界高端五轴联动、复合加工中心的代表品牌。

 

 

 

 

 

中国数控机床的现状

 

 

 

? 1. 

中低端为主

 

 

  • 中国品牌如 大连机床、沈阳机床、北一、济南二机、广州数控（GSK） 在中低端市场占有率高，主要满足国产替代和通用加工需求。
  • 加工精度、稳定性、可靠性与日本品牌仍有差距，尤其是在高温长时间运转、高动态响应方面。

 

 

 

? 2. 

高端CNC系统依赖进口

 

 

  • 中国虽有自主控制系统如华中数控、宝元等，但与 FANUC、Siemens 在复杂加工控制、软件生态、用户界面等方面仍有差距。
  • 高端五轴联动、复合加工设备仍依赖进口。