研究開発費 - 鉄構、減価償却費、研究開発費 - 土木他1件
- 【期間】
| 年度 | 研究開発費 - 鉄構 | 減価償却費 | 研究開発費 - 土木 | 全事業営業利益又は全事業営業損失（△） - 鉄構 |
|---|
| 2013/03 | - | | 3百万 | | - | | 14.8億 | |
| 2013/06 | - | | - | | - | | -0.38億 | 赤転 |
| 2013/09 | - | | - | | - | | 2.45億 | 黒転 |
| 2013/12 | - | | - | | - | | 1.94億 | -20.8% |
| 2014/03 | - | | 3百万 | ±0% | - | | 17.7億 | +812.4% |
| 2014/06 | - | | - | | - | | -5.24億 | 赤転 |
| 2014/09 | - | | - | | - | | -7.59億 | 赤拡 |
| 2014/12 | - | | - | | - | | -10.2億 | 赤拡 |
| 2015/03 | - | | 1百万 | -66.7% | - | | 4.95億 | 黒転 |
| 2015/06 | - | | - | | - | | 4.8億 | -3% |
| 2015/09 | - | | - | | - | | 7.3億 | +52.1% |
| 2015/12 | - | | - | | - | | 15.3億 | +109.6% |
| 2016/03 | - | | 0 | -100% | - | | 26.3億 | +71.8% |
| 2016/06 | - | | - | | - | | 9.04億 | -65.6% |
| 2016/09 | - | | - | | - | | 27.7億 | +206% |
| 2016/12 | - | | - | | - | | 34.8億 | +25.8% |
| 2017/03 | - | | 0 | | - | | 41.6億 | +19.6% |
| 2017/06 | - | | - | | - | | 2.95億 | -92.9% |
| 2017/09 | - | | - | | - | | 11.7億 | +297.3% |
| 2017/12 | - | | - | | - | | 19.3億 | +64.4% |
| 2018/03 | - | | 1百万 | | - | | 37.7億 | +95.7% |
| 2018/06 | - | | - | | - | | 7.36億 | -80.5% |
| 2018/09 | - | | - | | - | | 17.1億 | +132.3% |
| 2018/12 | - | | - | | - | | 40.3億 | +135.7% |
| 2019/03 | 327百万 | | 1百万 | ±0% | 112百万 | | 45.7億 | +13.3% |
| 2019/06 | - | | - | | - | | 1.42億 | -96.9% |
| 2019/09 | - | | - | | - | | 21.7億 | 大幅増 |
| 2019/12 | - | | - | | - | | 26.5億 | +22% |
| 2020/03 | 417百万 | +27.5% | 18百万 | 大幅増 | 109百万 | -2.7% | 43.1億 | +62.7% |
| 2020/06 | - | | - | | - | | -6.86億 | 赤転 |
| 2020/09 | - | | - | | - | | -17.6億 | 赤拡 |
| 2020/12 | - | | - | | - | | -5.51億 | 赤縮 |
| 2021/03 | 434百万 | +4.1% | 33百万 | +83.3% | 109百万 | ±0% | 44.1億 | 黒転 |
| 2021/06 | - | | - | | - | | 4.41億 | -90% |
| 2021/09 | - | | - | | - | | 24.3億 | +451.7% |
| 2021/12 | - | | - | | - | | 38.8億 | +59.4% |
| 2022/03 | 355百万 | -18.2% | 20百万 | -39.4% | 95百万 | -12.8% | 54.3億 | +39.9% |
| 2022/06 | - | | - | | - | | 5.94億 | -89.1% |
| 2022/09 | - | | - | | - | | 17.2億 | +189.4% |
| 2022/12 | - | | - | | - | | 20.8億 | +21.1% |
| 2023/03 | 399百万 | +12.4% | 19百万 | -5% | 112百万 | +17.9% | 41億 | +96.8% |
| 2023/06 | - | | - | | - | | -1.75億 | 赤転 |
| 2023/09 | - | | - | | - | | 7.98億 | 黒転 |
| 2023/12 | - | | - | | - | | 28億 | +250.4% |
| 2024/03 | 590百万 | +47.9% | 20百万 | +5.3% | 154百万 | +37.5% | 46.5億 | +66.2% |
| 2024/09 | - | | - | | - | | 27億 | -42% |
| 2025/03 | 574百万 | -2.7% | 36百万 | +80% | 223百万 | +44.8% | 62.7億 | +132.8% |
