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  2. Ferrous/Non-ferrous metals
  3. 有限会社東阪プラス 本社
Ferrous/Non-ferrous metals
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有限会社東阪プラス 本社

EstablishmentMay 1, 1958
capital1030Ten thousand
number of employees3
addressChiba/Sodegaura-shi/Shinna 2-13-21
phone0438-97-6074
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last updated:May 12, 2026
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有限会社東阪プラス Company Overview

Carving with the strongest sensor in history, the human hand.

Toshan Plus is a small factory specializing in ultra-precision cutting of high melting point and difficult-to-machine materials such as tungsten and molybdenum, focusing on prototypes, one-off items, and small-batch production of various types. We capture the subtle discomforts that cannot be fully addressed by numerical values and machine control—such as cutting sounds, vibrations, tool escape, and material quirks—using "the human hand as a sensor," refining our processes from condition setting to fine-tuning. We have built our work not on mass production or price competition, but on being chosen for "processing that cannot fail" and "processing that cannot be substituted." Additionally, our company is a renamed entity of the limited liability company Toshan Shokai, which was based in Okusawa, Setagaya Ward, Tokyo, until the year before last. While maintaining our growing unique domain and track record, we have relocated our base to Chiba and further sharpened the core of our processing capabilities.

Business Activities

We are specialists in tungsten, molybdenum, and ultra-precision cutting processing. Prototyping, one-off items, and small quantities of various products (condition setting, verification, fine-tuning). Processing consultations based on high-purity materials (99.99% or higher) / small quantity material procurement. *Former company name: Tohsaka Shokai Co., Ltd. (based in Okusawa, Setagaya) has been changed.

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Detailed information

Company name 有限会社東阪プラス 本社
number of employees3
Contact addresspostalcode 299-0257 Chiba/ Sodegaura-shi/ Shinna 2-13-21View on map TEL:0438-97-6074 FAX:0438-97-6075
Key PartnersToshiba Plus specializes in ultra-precision machining of high melting point and difficult-to-cut materials such as tungsten and molybdenum, focusing on prototypes, one-off items, and small quantities of diverse products. We refine conditions on-site from initial setup to fine adjustments, primarily engaging in work that requires "failure-free processing" and "irreplaceable processing." Our main clients (in no particular order) are as follows: 【Rare Metal and Metal Material Manufacturers】 - Allied Material Co., Ltd. - Japan Tungsten Co., Ltd. - Toho Metal Co., Ltd. - Hoku Industrial Co., Ltd. 【Public Research Institutions】 - National Institute for Materials Science (NIMS) 【Image and Electronic Material Related】 - Fujifilm Manufacturing Co., Ltd. 【Medical Devices and Measurement Instruments】 - Nipro Corporation - Sugawara Laboratory Co., Ltd. 【Industrial Equipment, Devices, and Material Related】 - Sunric Co., Ltd. - Sun Advance Co., Ltd. - Ricelec Co., Ltd. *In addition to the above, we have numerous other clients.
Former company name: Tokuhan Shokai Co., Ltd. (until the year before last, located in Okusawa, Setagaya, Tokyo). After the name change, the unique domain and continuity of achievements have been maintained. Unified qualification for all ministries: Manufacturing and sales of goods, Grade D (from December 18, 2022, to March 31, 2028 / Vendor code 0000234321).
Industry Ferrous/Non-ferrous metals
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