Osaka Vacuum: independent brand profile
Osaka Vacuum is a Japanese specialist in turbomolecular pumps, the TG and TGkine families, plus Roots boosters, rotary pumps and complete pumping systems. It is far less known in the West than Pfeiffer or Edwards. This profile states what the company publishes about itself and catches one AI assistant inventing an acquisition.
Independent profile by Vacuum Engineering Tools. We are not affiliated with Osaka, receive no payment and do not sell pumps. Quotes are the opinions of individual users, not statements of fact by us. Brand names belong to their respective owners.
In short
Osaka Vacuum, Ltd. is headquartered in Chuo-ku, Osaka, with factories in Nabari (Mie Prefecture) and Sakai (Osaka Prefecture) and group companies in the US and China. Non-consolidated sales were 9,317 million yen for the year to December 2025. Its range covers TG and TGkine turbomolecular pumps, RD Roots boosters, oil-sealed rotary pumps and vacuum pumping systems for production, analysis and R&D. We found no evidence that it belongs to a larger group, and no public owner discussion on Reddit.
Verified facts
What users say
A search of Google’s index of reddit.com for Osaka Vacuum vacuum pumps found no relevant threads. That is typical for semiconductor fab equipment: the buyers are equipment and facilities engineers who discuss suppliers internally, not on public forums.
Reddit blocks automated access, so thread titles, links and previews come from Google’s index of reddit.com (October 2026). Previews are excerpts, not the full comment.
From specialist forums
Used and refurbished pumps from this maker are traded by specialist rebuilders, which is where most of its public footprint lies.
No quotable forum posts found.
AI fact-check: what ChatGPT, Gemini, Perplexity and Claude say
On 9 October 2026 we asked all four assistants the same question (who owns Osaka, headquarters, founding, best-known series and what buyers say) and checked every answer against the manufacturer’s own pages.
| Question | ChatGPT (gpt-5.5) | Gemini (3.5 Flash) | Perplexity (Sonar) | Claude (Sonnet 5.5) | Verified |
|---|---|---|---|---|---|
| Who owns it? | ✓ Private, independent | ✓ Independent, private | ✓ Independently owned; US and Shanghai subsidiaries | ✗ “Became part of Edwards/Atlas Copco” | No parent group indicated; own subsidiaries in the US and China [Source] |
| Headquarters | ✓ Osaka | ✓ Osaka | ✓ Osaka | ✓ Osaka | Chuo-ku, Osaka [Source] |
| Founded | ? 1950; founder not disclosed | ? 1950, “Katura Ohira” | ? 1950, father of president Kazuyuki Kasaoka | ~ Declined to answer | Not stated on the English pages we could access [Source] |
| Series named | ~ TG, TH, TC | ~ TG-F, DSP, PR | ✓ TGkine, RD, P | ~ Declined to answer | TGkine, TG-F, TG-M, RD and rotary pumps [Source] |
✓ correct · ~ partly right or outdated · ✗ wrong · ? cannot be checked against an official source. Answers condensed. Only Perplexity used web search; the other models answered from training data.
Claude claimed Osaka Vacuum “became part of the Edwards/Atlas Copco group after a 2010s acquisition”. We found no evidence for this: the company’s own profile lists only its own subsidiaries, and none of the other assistants mention any takeover. Three assistants agree on a founding year of 1950 but name three different founders, none of which we could confirm.
Search interest compared
Google Trends data compared with other Japanese and Korean semiconductor-vacuum brands, web search, October 2021 to October 2026. “osaka vacuum” takes a steady 10–30 % share of this group’s searches in many countries. Because the phrase is generic, part of that interest is probably unrelated to the company.
Average search interest 2021–2026 (index)
Where people search for Osaka
How to read this: of every 100 Google searches for these five brand names in France, 28 were for Osaka; the most searched brand there, LOT, had 48. It shows relative interest, not sales or market share.
| Country | Osaka share | Rank | Most searched |
|---|---|---|---|
| France | 28 % | 2nd of 5 | LOT (48 %) |
| Italy | 20 % | 3rd of 5 | LOT (41 %) |
| Malaysia | 17 % | 2nd of 5 | ULVAC (62 %) |
| Singapore | 16 % | 2nd of 5 | ULVAC (64 %) |
| Germany | 16 % | 3rd of 5 | ULVAC (42 %) |
| United Kingdom | 15 % | 3rd of 5 | LOT (67 %) |
| South Korea | 14 % | 2nd of 5 | ULVAC (69 %) |
| Mexico | 13 % | 3rd of 5 | ULVAC (56 %) |
| Thailand | 11 % | 2nd of 5 | ULVAC (81 %) |
| Japan | 9 % | 2nd of 5 | ULVAC (88 %) |
| United States | 8 % | 3rd of 5 | LOT (81 %) |
| Taiwan | 4 % | 3rd of 5 | ULVAC (89 %) |
Pulled on 9 October 2026 via DataForSEO. Terms compared: “ulvac”, “ebara vacuum pump”, “kashiyama pump”, “osaka vacuum”, “lot vacuum”. Relative values, not absolute search volumes; non-English searches are not included.
Technology fingerprint
Computed from our directory of 25 manufacturers: which technologies Osaka offers and how common each is in the market.
| Technology | Makers in our directory | |
|---|---|---|
| Turbomolecular | 7 of 25 | |
| Roots | 11 of 25 | |
| Rotary vane | 15 of 25 |
Not in the range: Screw, Claw, Liquid ring, Scroll, Diaphragm
Closest alternatives
Manufacturers with the largest overlap in pump technologies.
Product series at a glance
| Series | Technology | What it is for |
|---|---|---|
| TGkine | Turbomolecular | Current turbomolecular pump family. |
| TG-F / TG-M | Turbomolecular | Turbomolecular pumps, including magnetically levitated types. |
| RD | Roots | Roots-type mechanical boosters. |
| Oil-sealed rotary pumps | Rotary vane | Backing pumps for turbo and process systems. |
Typical fit
- Semiconductor and display process tools
- Analytical instruments
- Thin-film coating systems
- Research and development vacuum
Useful calculators
Official owner resources
Frequently asked questions
Is Osaka Vacuum part of Edwards or Atlas Copco?
We found no evidence of that. Osaka Vacuum’s own company profile lists its headquarters in Osaka, factories in Nabari and Sakai, and its own group companies in the US and China, with no parent group.
What is Osaka Vacuum known for?
Turbomolecular pumps (TG and TGkine families), plus Roots boosters, oil-sealed rotary pumps and complete vacuum pumping systems.
Where are Osaka Vacuum pumps made?
At its factories in Nabari, Mie Prefecture, and Sakai, Osaka Prefecture, in Japan.
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