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Science and Technology

Master Craftsmen in High Technology

ハイテクの職人たち [NHK]

SERIES Giant Propellers

DC299808Documentary

ハイテクの職人たち | ミクロの研磨 巨大スクリュー [NHK]

|Length : 10min. |Year : 1998

This episode focuses on the process of making giant ship propellers - from the initial stage when the copper alloy is cast into the mold, through the final steps which require manually planning the hole in the propeller where the shaft must be snugly fitted, to the hand polishing of the giant blades. These "human touches" ensure that the ships which transport goods around the world can journey efficiently and safely. To paraphrase Mr. Izutani who has been doing this job for 25 years: "Humans are still superior to machines."

SERIES Nimble Fingers for Fashion

DC299809Documentary

ハイテクの職人たち | 最新ファッションを生む指先の技 [NHK]

|Length : 10min. |Year : 1998

The shape of a particular fiber determines its distinctive qualities, and central to the distinctiveness of each fiber is the precision of the holes, which can be as small as 100 microns, through which petroleum-based materials are squeezed to become chemical fibers. Akinori Katayama has been designated a "modern master craftsman" by the Ministry of Labor. He files and polishes unique tools made of ultra-hard alloys up to the thickness of a strand of human hair that are used to drill these holes into nozzles.

SERIES Polishing Rainbows, Manipulating Light

DC299810Documentary

ハイテクの職人たち | 虹を磨く 光を操る [NHK]

|Length : 10min. |Year : 1998

The production of finely-tuned optical lenses and prisms - used in cameras, telescopes and semiconductor manufacturing equipment - necessitates the sensitive touch of the human hand. Akira Hozumi produces prototype optical lenses and pentaprisms, which then become the standard for mass-produced goods. He uses his hands, fingertips and a sense of timing and intuition that has been honed over the years to produce these articles, some with angles to within 1/360 of a degree.

SERIES Steel Cable Braiding

DC299811Documentary

ハイテクの職人たち | ワイヤーロープは手でつなげ [NHK]

|Length : 10min. |Year : 1998

Mr. Ugajin (74) and Mr. Suzuki (72) are among only a handful of people in the country who possess the skills and experience necessary to braid steel cables - used in construction of massive bridges and ski-lift equipment and requiring a high level of safety - into continuous loops. This work is done manually as it requires a sure hand and a well-trained eye that machines do not have. This episode focuses on these two senior citizens as they pass their skills on to the next generation of cable braiders.

SERIES Old Skills for New Integrated Circuits

DC299812Documentary

ハイテクの職人たち | 竹串でつくる集積回路 [NHK]

|Length : 10min. |Year : 1998

As technology has advanced, many firms have had to adjust by developing new products. One such company in Kyoto has switched from the manufacture of metal molds for automobile parts to high-precision molds for integrated circuits. Mr. Ebata's job is "mirror polishing," and he employs a wide range of tools, including willow wood and bamboo skewers. His skills in precision processing are essential, and it's just one example of how skills from an earlier era are now being employed in new, cutting-edge technology.

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