9984：知っておくべきこと

2026年4月28日 ソフトバンクグループ[9984]の開示資料「剰余金の配当（期末配当）に関するお知らせ」 が閲覧できます。資料はPDFでダウンロードできます. この金曜日、9984 は Japan で注目を集める話題のひとつとなっている。

要点

• 2026年4月28日 ソフトバンクグループ[9984]の開示資料「剰余金の配当（期末配当）に関するお知らせ」 が閲覧できます。資料はPDFでダウンロードできます.
• 最新投稿日時:2026/04/28 15:30 - 「剰余金の配当（期末配当）に関するお知らせ」（適時開示）.
• In this article, we outline the development of lightweight and durable skin materials for HAPS wings, jointly pursued by SoftBank and TOPPAN Holdings.
• We also discuss their application to SoftBank’s HTA (Heavier-Than-Air) HAPS platform, Sunglider, currently under development.
• Throughout the history of communications, major leaps in technology have consistently been driven by breakthroughs in materials (Figure 2).

わかっていること

詳細では、最新投稿日時:2026/04/28 15:30 - 「剰余金の配当（期末配当）に関するお知らせ」（適時開示）.

具体的には、In this article, we outline the development of lightweight and durable skin materials for HAPS wings, jointly pursued by SoftBank and TOPPAN Holdings.

さらに、We also discuss their application to SoftBank’s HTA (Heavier-Than-Air) HAPS platform, Sunglider, currently under development.

なお、Throughout the history of communications, major leaps in technology have consistently been driven by breakthroughs in materials (Figure 2).

現時点では、Optical fiber, developed around the 1970s using ultra-low-loss silica, dramatically reduced attenuation.

数字で見る

詳細では、while HAPS airframe technologies largely matured in the 1990s, supporting larger communication payloads in the 2020s requires higher-performance materials.

具体的には、For example, a Boeing 747 must carry many passengers and cargo, resulting in a wing loading of approximately 800kg/m2.

さらに、Generating sufficient lift under such conditions requires enormous thrust from jet engines, consuming on the order of 10 kiloliters of fuel per hour.

なお、In contrast, the wing loading of Sunglider is roughly one-hundredth of that value (Figure 3), comparable to that of large birds such as albatrosses and swans.

背景

なお、one of the earliest milestones was the Gossamer Albatross (1979) (Figure 4), a human-powered aircraft that successfully crossed the English Channel.

現時点では、this concept was further advanced in the Solar Challenger (1981) (Figure 4), where the energy source for flight was entirely solar.

詳細では、a key milestone in the evolution of HAPS was NASA’s Helios (Figure 5), developed from the late 1990s through 2001.

具体的には、With a wingspan of approximately 75 meters, Helios was a large-scale aircraft, essentially a flying wing without conventional fuselage.

さらに、the entire wing surface was covered with solar cells, enabling sustained flight in the stratosphere at altitudes above 20 km for scientific observation.

まとめ

• While HAPS airframe technologies largely matured in the 1990s, supporting larger communication payloads in the 2020s requires higher-performance materials.
• One of the earliest milestones was the Gossamer Albatross (1979) (Figure 4), a human-powered aircraft that successfully crossed the English Channel.
• This concept was further advanced in the Solar Challenger (1981) (Figure 4), where the energy source for flight was entirely solar.
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